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

East and Southeast Asia ( pp. 349-424 ) . David Bradley (2007) · In Encyclopedia of the World's Endangered Languages edited by C. Moseley · London & New York: Routledge

The Hsihia, Lolo, and Moso languages ( pp. 230-241 ) . Nishida, Tatsuo (1988) · In Linguistics of the Sino-Tibetan Area: The state of the art papers presented to Paul K.~Benedict for his 71st birthday Pacific Linguistics: Series C · Vol. 87 · edited by Graham Thurgood and James A. Matisoff and David Bradley · Canberra: Research School of Pacific and Asian Studies, Australian National University

Proto-Kra ( pp. 1-251 ) . Ostapirat, Weera (2000) · Linguistics of the Tibeto-Burman Area. 23.1 http://sealang.net/sala/archives/pdf8/weera2000proto.pdf

普標語研究 A study of Pubiao . Liang, Min 梁敏, Junru Zhang 張均如, and Yunbing Li 李云兵 (2007) · Minorities Publishing House 民族出版社

Studies of endangered languages spoken in Southwestern China (西南地區瀕危語言調查研究) . Li, Jinfang (李錦芳) (2006) · The Central University of Nationalities Press (中央民族大學出版社)