Surma keeled
Kirjandus
- Abbink, Jon and Peter Unseth. 1998. "Surmic Languages and Cultures: A Bibliography." Surmic Languages and Cultures, ed. by Gerrit Dimmendaal, pp. 127–142. Cologne: Köppe.
- Bender, M. Lionel. "The Surma language group: a preliminary report". Studies in African Linguistics, Supplement 7, pp. 11–21.
- Dimmendaal, Gerrit. 1998. "A syntactic typology of the Surmic family from an areal and historical-comparative point of view," in Surmic Languages and Cultures, ed. by Gerrit Dimmendaal, pp. 35–82. Cologne: Köppe
- Fleming, Harold. 1983. "Surmic etymologies," in Nilotic Studies: Proceedings of the International Symposium on Languages and History of the Nilotic Peoples, Rainer Vossen and Marianne Bechhaus-Gerst, 524–555. Berlin: Dietrich Reimer.