↑ Nordhoff, Sebastian; Hammarström, Harald; Forkel, Robert; Haspelmath, Martin biên tập (2013). “Nafaanra”. Glottolog. Leipzig: Max Planck Institute for Evolutionary Anthropology.
↑ Ghana Institute for Linguistics, Literacy, and Bible Translation (GILLBT) 2003, as cited in Gordon, Raymond G., Jr. (ed.), 2005. Nafaanra: a language of Ghana. Ethnologue: Languages of the World, Fifteenth edition. Dallas, Tex.: SIL International. Truy cập 2007-04-10
