[24852] Blench, Roger M. (2007) : The Dyarim language of central Nigeria and its affinities
[22414] Caron, Bernard (2003) : A propos de Kal et de Sigidi: problèmes de dialectologie Zaar (tchadique sud Bauchi)
[24049] Caron, Bernard (2001) : Guus, aka Sigidi (Chadic, West-B, South-Bauchi): Grammatical notes and vocabulary
[24553] Caron, Bernard (2002) : Notes de terrains sur les langues sud-Bauchi