ベジャ語
Herman N. Almkvist. 1881-1885. Die Bischari-Sprache. 3 vols. Uppsala.
Václav Blažek. 2003. "Beǧa language", in: S. Uhlig et al. (eds.), Encyclopaedia Aethiopica Vol. 1: A-C (Wiesbadn: Harrassowitz), pp. 519b-521b.
Richard A. Hudson. 1974. "A structural sketch of Beja," African Language Studies. Ed. D.W. Arnott. London: School of Oriental and African Studies. Pages 111-142.
Richard A. Hudson. 1976. "Beja", in: M. Lionel Bender et al. (eds.), The Non-Semitic Languages of Ethiopia (East Lansing: Michigan University, African Studies Centre), pp. 97-131.
Leo Reinisch. 1893-1895. Die Beḍauye-Sprache in Nordost-Afrika 2.