Jungraithmayr, Herrmann. 1968/1969. Class languages of Tangale-Waja District (Bauchi Province, Northern Nigeria). Afrika und Übersee 52. 161-204.
@misc{1765, author = {Jungraithmayr, Herrmann}, title = {Class languages of Tangale-Waja District (Bauchi Province, Northern Nigeria). Afrika und Übersee 52. 161-204.}, year = {1968/1969} }