Anderson, Stephen C. 2001. “Phonological Characteristics of Eastern Grassfield Languages.” in Mutaka, Ngessimo M. and Sammy B. Chumbow (eds.). Research Mate in African Linguistics: Focus on Cameroon. Köln: Rüdiger Köppe Verlag.

Bradley, Ginny. 1986. Alphabet and Orthography Statement for Yamba. Yaounde: SIL.

Bradley, Ginny. 1995. Yamba-English Lexicon. Yaounde: SIL.

Bradley, Ginny. 2007. Yamba Orthography Guide. Yaounde: SIL.

Scruggs, Terri. 1980. A Segmental Phonology of nouns in Yamba. A thesis project for Master of Arts in Linguistics, University of Calgary, Alberta.

Scruggs, Terri R. 1980. Vowel harmony in Yamba. in: Calgary Working Papers in Linguistics. University of Calgary, Alberta.