Tunzu
[também conhecido como Dugusa, Duguza]Classificação: Niger-Congo
·ameaçado
Classificação: Niger-Congo
·ameaçado
Endangered Languages Catalogue Project. Compiled by research teams at University of Hawai'i Mānoa and Institute for Language Information and Technology (LINGUIST List) at Eastern Michigan University . (2012) ·
Ethnologue: Languages of the World, 16th Edition (2009) . (2009) · edited by M. Paul Lewis · SIL International http://www.ethnologue.com/
Atlas of the World’s Languages in Danger . Christopher Moseley (ed.) (2010) · UNESCO Publishing http://www.unesco.org/culture/en/endangeredlanguages/atlas
World Oral Literature Project . http://www.oralliterature.org
Notes on the Tunzu (Duguza) people and language . Roger M. Blench and John Garah Nengel (2004) · http://www.rogerblench.info/Language/Niger-Congo/BC/Kainji/East%%20Kainji/Tunzu/Notes%%20on%%20the%%20Tunzu.pdf