Domaines de recherche

• Langues Grassfields
• Description et documentation de langues
• Linguistique comparative/diachronique
• Multilinguisme rural
• Politique et planification linguistique

Cursus Universitaire

• 2007 : Docteur en Linguistique Générale, l’Université de Yaoundé 1, Cameroun.
• 2001 : Diplôme d'étude approfondie en Linguistique Générale, l’Université de Yaoundé 1.
• 2000 : Diplôme de professeur (d’Anglais) de l’enseignement secondaire 2e grade (DIPES II), Ecole Normale Supérieure, l’Université de Yaoundé 1.
• 1999 : Maîtrise en Linguistique Générale, l’Université de Yaoundé 1.
• 1997 : Licence (« BA ») en Linguistique Générale et Appliquée, l’Université de Yaoundé 1.

Situation professionnelle

• Janvier 2022 : Recruté au CNRS comme Directeur de Recherche 2ème classe au sein de l’UMR 8135 (LLACAN).
• Juillet – décembre 2021 : Visiting Scholar au Département d’Anglais, Université de Missouri.
• Janvier 2019 – juin 2021 : Chercheur Georg Forster de la Fondation Alexander von Humboldt, Université de Hambourg.
• Novembre 2017 – décembre 2018: Maître de conférences à l’Université de Bamenda, Cameroun.
• Octobre 2008 – octobre 2017 : Chargé de cours à l’Université de Buea, Cameroun.
• Septembre 2015 – mai 2016 : Fulbright Visiting Scholar au Département de Linguistique, Université de Californie, Berkeley.
• Juillet – octobre 2013 : Visiting Scholar au Graduate School of Asian and African Area Studies, Université de Kyoto.
• Juillet – septembre 2011 : Chercheur de la Deutscher Akademischer Austauschdienst (DAAD), Université de Hambourg.

Activités administratives

• Août 2017 -– décembre 2018 : Chef de service de la recherche et coopération de l'Institut Supérieur des Transports et de la Logistique, l’Université de Bamenda.
• Juin 2011 -– juillet 2017 : Directeur du Centre des langues et cultures Africaines (CALAC), Université de Buea.
• Septembre 2003 – août 2008 : Chef de département d’Anglais, Lycée Bilingue de Tibati, Cameroun.

Projets scientifiques

• Janvier 2023 – décembre 2027 : International Research Project (IRP). Institut des Sciences ‎Humaines et Sociales, CNRS.‎
• Mars -– novembre 2018 : ‘Documentation and Publication of Babanki Folktales’. Foundation for Endangered Languages (FEL).
• Mars -– août 2017 : ‘Babanki Teacher Training and Production of Literacy Materials’ Endangered Languages Fund (ELF).
• Octobre 2014 – septembre 2015 : ‘Multimedia Documentation of Babanki Oral Literature’. Firebird Foundation for Anthropological Research Fellowship.
• Décembre 2013 – novembre 2014: ‘Multimedia Documentation of Babanki Ritual Speech’. Endangered Languages Documentation Programme (ELDP), School of Oriental and African Studies (SOAS), London Small Grant.

Participation à des projets scientifiques

• Juillet 2010 – présent : Consultant pour le projet ‘Anaphora in the African Languages’. Department de Linguistique, Rutgers, The State University of New Jersey, Responsable : Ken Safir.
• 2012 -– 2015 : Membre de l’équipe de chercheurs dans le project de la Fondation Volkswagen ‘Documentation of the Beezen language (Cameroon)’, Responsable : Roland Kießling, Université de Hambourg.
• 2012 -– 2014 : Membre de l’équipe de chercheurs dans le project de la Fondation Alexander von Humboldt ‘Trilingual dictionary of Mankon varieties’, Responsables : Roland Kießling, Université de Hambourg et Evelyn Chibaka, Université de Buea.
• 2014 – 2019 : Membre de l’équipe de chercheurs du project ‘Key Pluridisciplinary Advances on African Multilingualism – Cameroon (KPAAM-CAM) project’, Responsable : Jeff Good, Université de Buffalo. https://ubwp.buffalo.edu/kpaamcam/2018/03/08/pius-akumbu/.

Sociétés savantes et associations

• 2018 – présent : Membre de l’Académie des Jeunes Scientifiques Camerounais (CAYS).
• 2016 – présent : Membre de l’Association of Contemporary African Linguistics (ACAL).
• 2016 – présent : Membre de la Linguistic Society of America (LSA).
• 2012 – présent : Membre de la Foundation for Endangered Languages (FEL).
• 2009 – présent : Membre du World Congress of African Linguistics (WOCAL).

Organisation de colloques

• Membre du comité scientifique de la conférence ELAR et PARADISEC: ‘Where do we need to go from ‎here? Language documentation and archiving during the decade of indigenous languages’, Berlin 3 – 7 ‎octobre 2022. https://langdoc.org/conference-info/‎
• Organisateur (avec Pierpaolo Di Carlo, Jeff Good et Roland Kießling) du panel ‘Language contact and ‎non-convergent change in West Africa’, 4th Symposium on West African Languages SyWAL 2022, ‎Université de Naples, 21 – 23 septembre 2022. https://www.unior.it/ricerca/28881/3/panels.html
• Membre du comité d’organisation de la ‘First Conference on Bantoid languages and linguistics’, ‎Université de Hambourg, 23 – 25 mars 2022. https://www.aai.uni-‎hamburg.de/afrika/veranstaltungen/banto1d.html
• Membre du comité d’organisation du ‘UN International Year of Indigenous Languages 2019 Perspectives Conference’, Université Purdue, Fort Wayne, 30 novembre 2019 – 02 décembre 2019. https://iyil2019perspectives.org/organizing-committee/.
• Membre du comité d’organisation du ‘Cameroon-US government Alumni Fair ‘Connect-Inspire-Impact: Nursing the next generation of Cameroon’s leaders’, US l’Ambassade des États-Unis à Yaoundé, 13 – 15 septembre 2018.
• Organisation des séminaires mensuels au Centre des Langues et Cultures Africaines à l’Université de Buea, 2012 – 2017.
• Membre du comité d’organisation du ‘47th Annual Conference on African Linguistics (ACAL47)’, à l’Université de Californie à Berkeley, 23 – 26 mars 2016. http://linguistics.berkeley.edu/acal47/
• Organisation du Language Documentation and Archiving Workshop. Centre des Langues et Cultures Africaines de l’Université de Buea, 6 juin 2014.
• Membre du comité d’organisation du ‘World Congress of African Linguistics (WOCAL) 7’ à l’Université de Buea, 20 – 24 août 2012.

Activités éditoriales

• 2020 – présent : Membre du Comité Scientifique de la revue Afrika und Übersee.
• 2021 : Membre du Groupe ad hoc de l'UNESCO pour la préparation du Plan d'action mondial pour la décennie des langues autochtones (IDIL2022-2032).
• Expertise d’articles pour les revues African Language Association of South Africa : 2012 ; Afrika und Übersee: 2020 – présent ; California Linguistic Notes : 2012 – 2013 ; Journal of the Cameroun Academy of Sciences : 2020 – présent ; Journal of West African Languages : 2012 – 2013 ; Linguistics Vanguard : 2019 ; Studies in African Linguistics : 2013 ; TRANEL : 2021 – présent.
• Expertise de projets scientifiques pour National Science Foundation : 2019 – présent ; Endangered Languages Documentation Programme : 2014 – présent ; Endangered Languages Fund : 2019 – présent.

Enseignement

• Université de Missouri, USA
  Août - décembre 2021: LINGST 2601: Languages of Africa (https://english.missouri.edu/courses/engl-2601).
• Université de Hambourg, Allemagne
  - Octobre 2019 -– mars 2020: 57–679: Linguistic Fieldwork and Descriptive analysis of African Languages I.
  - Avril 2020 -– septembre 2020 (avec Roland Kießling): 57–680: Linguistic Fieldwork and Descriptive analysis of African Languages II.
• Université de Bamenda, Cameroun
  Novembre 2017 – décembre 2018 : J'ai enseigné la Phonologie Générative, la Documentation de Langues, et la Linguistique Appliquée.
• Université de São Paulo, Brésil
  Avril 15 – 19, 2013 : Introduction to Register Tier Theory (Graduate Students).
• Université de Buea, Cameroun
  Octobre 2008 – octobre 2017 : J'ai enseigné plusieurs cours sur la linguistique africaine, notamment la Phonétique, la Phonologie, la Morphologie et les Méthodes de Terrain.
• Lycée Bilingue de Tibati, Cameroun
  Septembre 2003 – août 2008 : Professeur d’Anglais.
• Université de Dschang, Cameroun
  Octobre 2001 – juillet 2002 : En tant que vacataire, j'ai enseigné la Phonologie Générative.

Direction de thèses

Soutenue

• Septembre 2015 - 15 novembre 2019 : Simo Charlotte Dguidge, Towards an implementation of content and language integrated learning in teaching EFL in language centres in Cameroon, Université de Buea (co-direction avec Paul Mbangwana, l’Université de Yaoundé 1).

En cours

• Septembre 2019 - présent : Linda Wulekiawi Ndum, Emergency linguicism: Linguistic minorities of North-West Cameroon in emergencies, l’Université de Bamenda.
• Septembre 2019 - présent : Benard Sanda Talah, Indigenous languages education and the challenge of linguistic identity and contemporary emergence: The Yamba experience, l’Université de Bamenda.

Participations à des jurys de thèse

• 16.06.2021 : Membre du jury de thèse de Gardy Stein, A sociolinguistic study of gender-based differences in exposure to and usage of Camfranglais in Yaoundé, Université de Hambourg.
• 22.01.2021 : Membre du jury de thèse de Stefan Bruckhaus, The lexico-grammar of motion in Barbayiiga and Gisamjanga, Université de Hambourg.
• 24.09.2020 : Membre du jury de thèse de Michael Angitso Terhemen, A descriptive study of the Tiv nominal morphology, Université de Hambourg.

Formation continue

‎‎
• 12–23.09.2022. Ecole d'été. Semantic Shifts: From lexicon to grammar. Diachronic and typological ‎perspectives, Frejus – Destremau, France.

Conférences & communications

‎
• 8.12.2022. Note de lecture du dictionnaire eton-français. Institut Français, Yaoundé, Cameroon.
‎‎
• 4.11.2022. Language, education and the development of Africa: The role of indigenous ‎language. Humboldt Kolleg: “The transformative development of postcolonial Africa: ‎Multidisciplinary and interdisciplinary perspectives”, Yaoundé, Cameroon.
‎
• ‎5.10.2022. Grammaticalization of Babanki quotative markers. Cross-disciplinary perspectives on ‎quoting and speech reporting, Université Libre de Bruxelles, Belguim.
‎‎
• 25.09.2022. Variation in Central Ring: Convergence or divergence? (with Roland Kießling). 4th ‎Symposium on West African Languages, University of Naples L'Orientale, Italy.
• 29.06.2022. Imagining a new scientific partnership between Africa and Europe. Conference organized by ‎the CNRS and IRD, France. Palais des Académies of the Royal Academy of Sciences, Humanities and ‎Fine Arts of Belgium in Brussels. ‎
• 24.06.2022. The dog barks wùúh or wúh: A contrastive study of onomatopoeia in Babanki and Kambaata ‎‎(with Yvonne Treis). Word-formation theories VI / Typology and universals in word-formation V, workshop ‎‎“onomatopoeia”, Košice, 23-26 June 2022. ‎
• 2-3, 13-14.06.2022. Multicausal approaches to language contact. Séminaires de Kofi Yakpo - Labex EFL ‎Chaire Internationale 2022, INALCO, Paris.‎
• 01.06.2022. Contact semantics and dialect polysemes: The dynamics of verb semantics in Ewe varieties. ‎Guest lecture de Felix Ameka, Ecole des Hautes Etudes en Sciences Sociales, Paris.‎
• 07.04.2022. A community approach to language documentation in Africa (Plenary). 53rd Annual ‎Conference on African Linguistics (ACAL53), University of California, San Diego, April 7 – 9 2022.‎
• 24.03.2022. Remnants of nasal prefixes in Western Grassfields Bantu (with Jeffrey Wills). First ‎Conference on Bantoid languages and linguistics, University of Hamburg, Germany, 23 – 25 mars 2022.
• 24.03.2022. A preliminary reconstruction of Proto-Momo (with Rebecca Grollemund & Jeffrey Wills). First ‎Conference on Bantoid languages and linguistics, University of Hamburg, Germany, 23 – 25 mars 2022.
• 23.01.2022. Literal and metaphorical usages of Babanki EAT and DRINK verbs. Séminaire du LLACAN, ‎Villejuif.
• 17.01.2022. Babanki (Cameroon) revitalization programme: Where we’ve been and where we’re going ‎‎(Invited speaker). Festival of Indigenous Languages, Endangered Languages Project ‎https://sites.google.com/endangeredlanguages.com/elp-festival/ speakers#h.yhdsaayicnzo.‎
• 23.09.2021. When speakers produce grammatical descriptions of their own languages: Community-based approaches to writing grammars of under-described languages. Institut des Langues Rares, Ecole Pratique de Hautes Etudes, Paris.
• 01.09.2021. Languages in and of education in Africa: The future of indigenous languages. Focus on Africa Series, African Interdisciplinary Studies Hub, University of Missouri-Columbia.
• 03.07.2021. Bubbling belly and bursting bile: The linguistic expression of anger in Babanki (with Roland Kießling). 24th Afrikanist*innentag, Goethe-Universität Frankfurt am Main.
• 03.07.2021. The expression of commands, warnings and threats in Babanki. Workshop "Commands, blessings and warnings: Grammatical and ethnolinguistic aspects of directives in African languages". 24th Afrikanist*innentag, Goethe-Universität Frankfurt am Main.
• 09.06.2021. Grammatical functions of the Babanki nasal prefix. 10th World Congress of African Linguistics (WOCAL10), Leiden University.
• 09.06.2021. Emergency linguicism: Linguistic minorities of North-West Cameroon in emergencies. 10th World Congress of African Linguistics (WOCAL10), Leiden University.
• 2021/05/19. Literal and metaphorical usages of Babanki EAT and DRINK verbs. Departmental Colloquium, University of Hamburg.
• 09.04.2021. Vowel quality and stress in African tone languages: The case of Babanki. 51st-52nd Annual Conference on African Linguistics (ACAL 51-52), University of Florida, USA.
• 09.04.2021. The expression of qualities in Babanki. 51st-52nd Annual Conference on African Linguistics (ACAL 51-52), University of Florida, USA.
• 28.03.2021. Supporting multilingualism and robust language ecologies. Endangered Language Project (ELP) Helpdesk Workshop, University of Hawaiʻi at Mānoa, USA.
• 13.02.2021. The role of indigenous languages in COVID-19 communication in Cameroon. Cameroon Academy of Young Scientists’ Webinar Series.
• 20.01.2021. Language documentation and the empowerment of target community members. School of Oriental and African Studies (SOAS), London Linguistics Seminars.
• 06.01.2021. The expression of emotions in Babanki. Departmental Colloquium, University of Hamburg.
• 27.11.2020. Language documentation in Cameroon: Experiences and perspectives. (Guest speaker). “Introduction to language documentation class”, School of Oriental and African Studies (SOAS), London.
• 18.05.2020. The conjoint/disjoint alternation in Babanki. Departmental Colloquium, University of Hamburg.
• 13.12.2019. Tense-Aspect marking and information structure in Babanki. Afranaph Project Development Workshop III. Georgetown University, Washington DC.
• 15.11.2019. Opportunities and challenges of mother-tongue education in multilingual settings: The case of Babanki, Cameroon. Rutgers Indigenous Languages Colloquium. Rutgers University, New Jersey.
• 01.11.2019. Languages in and of education in Africa: The future of indigenous languages (Plenary). International Year of Indigenous Languages 2019: Perspectives Conference. Purdue University, Fort Wayne, Indiana.
• 24.05.2019. Vowel assimilation to onset place in Kejom (with Matt Faytak). 50th Annual Conference on African Linguistics (ACAL 50), University of British Columbia, Canada.
• 23.05.2019. A segmental reconstruction of Proto Central Ring (with Matt Faytak). 50th Annual Conference on African Linguistics (ACAL 50), University of British Columbia, Canada.
• 15.04.2019. Multilingualism among the Mbororo of Northwest Cameroon: An overview. Typology of Small Scale Multilingualism Conference. Dynamique du Language (CNRS & Université Lumière Lyon 2) Lyon.
• 27.03.2019. Reflections on a community-based approach to writing grammars of endangered languages (Plenary). Descriptive Grammars and Typology: The challenges of writing grammars of underdescribed and endangered languages conference. University of Helsinki, Finland.
• 15.09.2018. Thinking and creating: Key to development in Africa (Keynote). Cameroon-US government Alumni Fair ‘Connect-Inspire-Impact: Nursing the next generation of Cameroon’s leaders’. US Embassy, Yaounde.
• 05.01.201. Verbal extensions in Grassfields Bantu. First National Symposium on Cameroonian Languages (NASCAL), SIL Cameroon and University of Yaounde I.
• 12.08.2017. Understanding language diversity among the Mbororo of Northwest Cameroon. ‘African MultilingualismS’ conference, Univeristy of Yaounde I.
• 2016/03/24. A featural analysis of mid and downstepped high tone in Babanki. 47th Annual Conference on African Linguistics (ACAL47), University of California, Berkeley.
• 06.02.2016. Babanki coda consonant deletion and vowel raising: A case of allomorphy. Berkeley Linguistics Society (BLS) 42nd annual meeting, UC Berkeley.
• 10.01.2016. Babanki literacy classes and community-based language research. Linguistic Society of America (LSA) 90th Annual Meeting. Marriott Marquis, Washington D.C.
• 12.12.2013. Competing Babanki anaphors Afranaph Project Workshop II, Rutgers University, New Jersey.
• 05.12.2013. Multimedia documentation of lesser known languages in Northwest Cameroon VolkswagenStiftung Conference ‘Digital Humanities Revisited: Challenges and Opportunities in the Digital Age’, Hanover, Germany.
• 12.10.2013. Babanki verb tone. Seminars of the Research Institute for Languages and Cultures of Asia and Africa, Tokyo University of Foreign Studies, Japan.
• 30.06.2011. Unreleased stops in Bezen (Cameroon). DOBES workshop, Max Planck Institute for Psycholinguistics, Nijmegen.
• 19.08.2009. Tone on the associative construction in Kejom (Babanki). 6th World Congress for African Linguistics, University of Cologne, Germany.

Publications

Monographies

• Akumbu, Pius W. (2022). Babanki (Kejom) living dictionary. Living Tongues Institute for Endangered Languages. ‎https://livingdictionaries.app/babanki‎
• Akumbu, Pius W. & Cornelius W. Wuchu (2015). Kejom (Babanki) Linguistic Practices in Farming Economies. Kansas City: Miraclaire Academic Publications.
• Akumbu, Pius W. & Evelyn F. Chibaka (2012). A pedagogic grammar of Babanki. Köln: Rüdiger Köppe Verlag.

Co-édition d’ouvrages

• Akumbu, Pius W. & Justine G. Nzweundji (eds.). (2021), Responding to disease outbreak in Cameroon: Lessons from COVID-19. Köln: Köppe.
• Akumbu, Pius W. & Esther P. Chie (eds.) (2019). Engagement with Africa: Linguistic essays in honor of Ngessimo M. Mutaka. Köln: Köppe.
• Akumbu, Pius W. & Blasius A. Chiatoh. (eds.) (2013). Language policy in Africa: Perspectives for Cameroon. Kansas City: Miraclaire Academic Publications.

Thèse (2007)

• Akumbu, Pius W. (2012). Njém Tonology. Dallas: SIL International e-Books 45, 309pp.
  https://www.sil.org/system/files/reapdata/74/56/93/74569343095534003835886369986337201453/eBook_45_Njem_Tonology.pdf

Articles de revues

• Akumbu, Pius W. & Florian Lionnet (In Preparation). Interjections and liminal signs in Babanki.‎
• Akumbu, Pius W. & Roland Kießling (submitted). The Babanki pronoun system. Journal of African Languages and ‎Linguistics.‎
• Akumbu, Pius W. & Roland Kießling (to appear). Variation in Central Ring: Convergence or divergence? In ‎Pierpaolo Di Carlo, Pius W. Akumbu, Jeff Good, & Roland Kießling (eds.), Language contact and non-convergent ‎change in West Africa. Special issue of the journal Linguistic Typology at the Crossroads.‎
• Akumbu, Pius W. & Jeffrey Wills (2022). Remnants of nasal prefixes in Western Grassfields Bantu. ‎Africana Linguistica 28: 3–23. Doi: 10.2143/AL.28.0.3291206
• Akumbu, Pius W. & Roland Kießling (2022). The role of the Babanki noun phrase-final enclitic class ‎marker. Linguistique et Langues Africaines 8(1): 1–40. https://doi.org/10.4000/lla.2202
• Akumbu, Pius W. (2022). The conjoint/disjoint alternation in Babanki. Language in Africa 3(3): 16–39. ‎doi: 10.37892/2686-8946-2022-3-3-16-39
• Akumbu, Pius W. & Roland Kießling (2022). The lexical semantics of verbs in the Babanki food domain. ‎Journal of West African Languages 49(2): 34–55.
• Akumbu, Pius W. & Roland Kießling (2021). Literal and metaphorical usages of Babanki EAT and DRINK verbs. Afrika ‎und Übersee 94, 1–38. DOI 10.15460/auue.2021.94.1.248.‎
• Faytak, Matthew & Pius W. Akumbu (2021). Kejom (Babanki). Journal of the International Phonetic Association, 51(2): 333–354. DOI: https://doi.org/10.1017/S0025100319000264.
• Akumbu, Pius W. & Roland Kießling (2020). The expression of diminutivity in Central Ring Grassfields Bantu. Afrika und Übersee 93(1), 257-280. DOI: https://doi.org/10.15460/auue.2020.93.1.203.
• Akumbu, Pius W., Larry M. Hyman & Roland Kießling (2020). The segmental and tonal structure of verb inflection in Babanki. Phonological Data and Analysis, 2(2):1–33. DOI: https://doi.org/10.3765/pda.v2art2.32.
• Akumbu, Pius W. (2020). Reflections on a community-based approach to writing grammars of endangered African languages. Studies in African Languages and Cultures 54: 71–96.
• Akumbu, Pius W. (2020). Legitimizing the development and use of Cameroon’s national languages: Lessons from COVID-19. Journal of the Cameroon Academy of Sciences 15(3): 193–206.
• Akumbu, Pius W. & Lilian L. Atanga (2020). The language of greetings and power dynamics among the Babanki and Fulɓe of North-West Cameroon. Journal of Arts and Humanities 3(1): 41–50.
• Dickson, Drusia, Sabrinah Christie, Alain Chichom-Mefire, Patricia O’Sullivan, Pius Akumbu, Marie Jose Essi, Rochelle Dicker & Catherine Juillard (2019). A qualitative study of care transitions following injury in Cameroon. Journal of Surgical Research, 244:528–539.
• Akumbu, Pius W. & Charlotte D. Simo (2018). Enhancing EFL learning in Cameroon’s language centres through content and language integrated learning. Journal of English Language Teaching and Linguistics, 3(2):163–176.
• Akumbu, Pius W. & Larry M. Hyman (2017). Nasals and low tone in Grassfields noun class prefixes. Nordic Journal of African Studies, 26(1):1–13.
• Akumbu, Pius W. (2016). Babanki coda consonant deletion and vowel raising: A case of allomorphy. Proceedings of the 42nd annual meeting of the Berkeley Linguistics Society, 3–20.
• Akumbu, Pius W. (2016). Babanki negation patterns. Sky Journal of Linguistics, 29:147–159.
• Akumbu, Pius W. (2016). Babanki ideophones. California Linguistic Notes, 40(1):1–15.
• Akumbu, Pius W. (2015). Babanki Verb Tone. Studies in African Linguistics, 44(1):1–26.
• Chiatoh, Blasius A. & Pius W. Akumbu (2014). Enhancing English language studies in Cameroon: The mother tongue perspective. California Linguistic Notes, 39(1):23–47.
• Akumbu, Pius W. (2011). Tone in Kejom (Babanki) associative constructions. Journal of West African Languages, 38.1:69–88.
• Akumbu, Pius W. & Esther P. Asonganyi (2010). Language in contact: The case of the Fulbe dialect of Kejom (Babanki). African Study Monographs, 31(4):173–187.
• Akumbu, Pius W. (2009). Tone on Njyem nouns: A Register Tier Theory perspective. Sky Journal of Linguistics, 22:7–42.
• Chumbow, Beban S. & Pius W. Akumbu (2007). Upstep of low tone in Njem and Register Tier Theory. Journal of West African Languages, 34(1):39–53.

Chapitres dans des ouvrages

• Akumbu, Pius W. (submitted). Onomatopoeia in Babanki. In Lívia Körtvélyessy (ed.), Handbook of onomatopeoia. ‎De Gruyter Mouton
• Akumbu, Pius W. (submitted). A community approach to language documentation in Africa. ACAL53 Proceedings. ‎Language Science Press.‎
• Akumbu, Pius W. & Jeffrey Wills (submitted). V2 and extensions in Ring languages. In Rebecca Grollemund, Derek ‎Nurse and John Watters (eds.), Bantoid and Bantu in Cameroon: An historical re-assessment. De Gruyter Mouton.‎
• Akumbu, Pius W. & Roland Kießling. (submitted). Babanki logophoricity in a Ring perspective. In Rose-Juliet Anyanwu ‎‎(ed.), Logophoricity in African languages.‎
• Akumbu, Pius W. (submitted). The expression of directives in Babanki. In Ronny Meyer & Yvonne Treis ‎‎(eds.) Commands, blessings and warnings: Grammatical and ethnolinguistic aspects of directives in African ‎languages. Language Science Press.‎
• Akumbu, Pius W. & Pierpaolo Di Carlo (2021). Multilingualism: The language of health in Cameroon. In Akumbu, Pius W. & Justine G. Nzweundji (eds.), Responding to disease outbreak in Cameroon: Lessons from COVID-19, 1-17. Köln: Köppe.
• Akumbu, Pius W., Patience P. Teneng & Sylvanus W. Ngu (2021). Teachers’ technological development and distance learning during disease outbreak in Cameroon: The COVID-19 experience. In Akumbu, Pius W. & Justine G. Nzweundji (eds.), Responding to disease outbreak in Cameroon: Lessons from COVID-19, 97-107. Köln: Köppe.
• Akumbu, Pius W. & Esther P. Chie (2020). Multilingualism among the Mbororo of the North-West Region of Cameroon: An overview. In Pierpaolo Di Carlo & Jeff Good (eds.), African multilingualisms: Rural linguistic and cultural diversity, 3–14. Lanham: Lexington Books.
• Akumbu, Pius W. (2020). Babanki verbal extensions. In Eno-Abasi Urua, Francis Egbokhare, Oluseye Adesola & Harrison Adeniyi (eds.), African languages in time and space: A festschrift in honour of Akinbiyi Akinlabi, 137-147. Ibadan: Zenith BookHouse Publishers.
• Akumbu, Pius W. (2019). A featural analysis of mid and downstepped high tone in Babanki. In Emily Clem, Peter Jenks & Hannah Sande (eds.), Theory and description in African linguistics: Selected papers from the 47th Annual Conference on African linguistics, 3–20. Berlin: Language Science Press.
• Akumbu, Pius W. (2019). Noun class 9/10 tone in Central Ring Grassfields Bantu: An overview. In Pius W. Akumbu & Esther P. Chie (eds.), Engagement with Africa: Linguistic essays in honor of Ngessimo M. Mutaka, 1–13. Köln: Köppe.
• Akumbu, Pius W. (2018). Babanki literacy classes and community-based language research. In Shannon T. Bischoff & Carmen Jany (eds.), Insights from practices in community-based research: From theory to practice around the globe, 266–279. Berlin: Mouton de Gruyter.
• Akumbu, Pius W. (2017). The semantics, evolution and impact of Grassfields personal names: The case of Kejom (Babanki). In Zacharie Saha & Jean R. Kouesso. (eds.), Grassfields of Cameroon: From culture to human development, 155–160. Yaounde: Editions du CERDOTOLA.
• Chiatoh, Blasius A. & Pius W. Akumbu (2013). Towards a national language policy for Cameroon. In Pius W. Akumbu & Blasius Chiatoh (eds.), Language policy in Africa: Perspectives for Cameroon, 194–215. Kansas City: Miraclaire Academic Publications.
• Akumbu, Pius W. (2009). Bum noun class system. In Adika, G., Fabunmi, F. & Salawu, A. (eds.), Current perspectives in phono-syntax and dialectology, 212–226. Ghana: University of Winneba.
• Akumbu, Pius W. (2009). Kejom tense system. In Vincent Tanda, Pius Tamanji & Henry Jick (eds.), Language, literature and social discourse in Africa: Essays in honour of Emmanuel N. Chia, 183–200. Buea: University of Buea.