The Bua language is spoken north of the Chari River around Korbol and Gabil in Chad. In 1993 it was spoken by some 8,000 people. It is the largest member of the small Bua group of languages and is mutually comprehensible with Fanian. Kawaway may be a dialect or a distinct language.
^Hammarström, Harald; Forkel, Robert; Haspelmath, Martin, eds. (2017). "Bua". Glottolog 3.0. Jena, Germany: Max Planck Institute for the Science of Human History.
P. A. Benton, Languages and Peoples of Bornu Vol. I, Frank Cass & Co:London 1912 (1st ed.)/1968 (2nd ed.) Gives Barth's unpublished vocabulary of Bua on pp. 78–130.
M. Gaudefroy-Demombynes, Documents sur les langues de l'Oubangui-Chari, Paris, 1907. Includes (pp. 107–122) a 200-word comparative list of Bua, Niellim, Fanian, and Tunia, with a brief grammar and some phrases collected by Decorse.
J. Lukas, Zentralsudanisches Studien, Hamburg, Friedrichsen, de Gruyter & Cie, 1937. Gives the wordlists of Nachtigal, zu Mecklenburg, Barth, and Gaudefroy-Demombynes for Bua (~400 words), Niellim (~200 words), and Koke (~100 words).
A. N. Tucker & M. A. Bryan, The Non-Bantu Languages of North-Eastern Africa, Handbook of African Languages, part III, Oxford University Press for International African Institute, 1956. Summarizes the grammar of Bua and two relatives based on existing fieldwork.