Naden, Anthony Joshua. 1973. The Grammar of Bisa - a Synchronic Description of the Lebir Dialect. (Doctoral dissertation, University of London, School of Oriental and African Studies).
@phdthesis{naden1973, author = {Naden, Anthony Joshua}, school = {University of London, School of Oriental and African Studies}, title = {The Grammar of Bisa - a Synchronic Description of the Lebir Dialect}, year = {1973} }