Gùùs, aka Sigidi (Chadic, West-B, South-Bauchi): Grammatical notes and vocabulary, Afrika und Übersee, vol.84, 2002. ,
The Hausa aspect system, Afroasiatic Linguistics, vol.1, pp.1-39, 1974. ,
Sayanci verb tonology, Newman. Journal of African Languages, 1971. ,
The Southern Bauchi Group of Chadic Languages. A survey report, Africana Marburgensia, vol.2, p.50, 1978. ,