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) ·

Encyclopedia of the World's Endangered Languages . Christopher Moseley (2005) · RoutledgeCurzon

Ethnologue: Languages of the World, 16th Edition (2009) . (2009) · edited by M. Paul Lewis · SIL International http://www.ethnologue.com/

World Oral Literature Project . http://www.oralliterature.org

The Red Book of the Peoples of the Russian Empire . (1993) · edited by Andrew Humphreys and Krista Mits · http://www.eki.ee/books/redbook

Atlas of the World’s Languages in Danger . Christopher Moseley (ed.) (2010) · UNESCO Publishing http://www.unesco.org/culture/en/endangeredlanguages/atlas

The World Atlas of Language Structures . (2005) · edited by Bernard Comrie and David Gil and Martin Haspelmath and Matthew S. Dryer · Oxford University Press

Konsonantizm andijskix jazykov. Istorichesko-sravnitel'nyj analiz . Gudava, T. E. (1964) · Izdatel'stvo Akademii Nauk Gruzinskoj SSR

Imja sushchestvitel'noe ( pp. 127-150 ) . Daniel, Mixail A. (2001) · In Bagvalinskij jazyk: Grammatika, teksty, slovari edited by Kibrik, A. E., Tatevosov, S. G,. Kazenin, K. I. and Ljutikova, E. A. · IMLI RAN

Bagvalinskij jazyk: Grammatika, teksty, slovari . Anonymous, (2001) · edited by Kibrik, Alexandr · Imli Ran Nasledie