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Ahland, Colleen Anne. «The Classification of Gumuz and Koman Languages», [1] presented at the Language Isolates in Africa workshop, Lyons, December 4, 2010
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Gerrit Dimmendaal, 2008. «Language Ecology and Linguistic Diversity on the African Continent», Language and Linguistics Compass 2/5:842.
Ahland, Colleen Anne. 2004. «Linguistic variation within Gumuz: a study of the relationship between historical change and intelligibility.» M.A. thesis. University of Texas at Arlington.
Colleen Ahland. 2011. Noun incorporation and predicate classifiers in Gumuz
Bender, M. Lionel. 1979. Gumuz: a sketch of grammar and lexicon. Afrika und Übersee 62: 38-69.
Unseth, Peter. 1985. «Gumuz: a dialect survey report.» Journal of Ethiopian Studies 18: 91-114.
Unseth, Peter. 1989. «Selected aspects of Gumuz phonology.» In Taddese Beyene (ed.), Proceedings of the eighth International Conference on Ethiopian Studies, vol. 2, 617-32. Addis Ababa: Institute of Ethiopian Studies.
Uzar, Henning. 1993. Studies in Gumuz: Sese phonology and TMA system. In Topics in Nilo-Saharan linguistics, edited by M.L. Bender. Hamburg: Helmut Buske: 347—383.