Koke is an

Adamawa language The Adamawa languages are a putative family of 80–90 languages scattered across the Adamawa Plateau in central Africa, in Nigeria, Cameroon, Central African Republic, and Chad, spoken altogether by only one and a half million people (as of 19 ...

of Chad. Speakers are found in Daguela Canton,

Chinguil Chinguil is a sub-prefecture of Guéra Region in Chad. Demographics Ethnic composition by canton in 2016:Oxfam Oxfam is a British-founded confederation of 21 independent charitable organizations focusing on the alleviation of global pover ...

Sub-prefecture,

Guéra Region Guéra or Guera may refer to: * Guéra Prefecture, a former first-level administrative division of Chad until 1999 * Guéra Region, a first-level administrative division of Chad since 2002 * Guéra Department, a second level administrative divis ...

. Oxfam and Office National de Développement Rural (ONDR). 2016.
Atlas de la vulnérabilité dans le Guera. Première partie: synthèse regional
'. 2nd edition (updated from 2013 edition). PASISAT (Projet d’Appui à l’Amélioration du Système d’Information sur la Sécurité Alimentaire au Tchad).

References

Languages of Chad Bua languages {{AtlanticCongo-lang-stub