Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
Blench, Roger (2019). An Atlas of Nigerian Languages (4th ed.). Cambridge: Kay Williamson Educational Foundation.
Blench, Roger M. 2018. Nominal affixes and number marking in the Plateau languages of Central Nigeria. In John R. Watters (ed.), East Benue-Congo: Nouns, pronouns, and verbs, 107–172. Berlin: Language Science Press. doi:10.5281/zenodo.1314325