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

A brief sketch of two varieties of Jiongnai ( pp. 33-36 ) . Yoshihisa Taguchi 田口善久 (2000) · In Studies in Minority Languages edited by K. Matsumura · University of Tokyo http://mitizane.ll.chiba-u.jp/meta-bin/mt-pdetail.cgi?cd=00041048

炯奈語研究 [A study of Jiongnai] . Mao, Zongwu 毛宗武 and Yunbing Li 李云兵 (2002) · Central Nationalities University Press 中央民族大學出版社

苗瑤語文 [On Hmong-Mien] . Chen, Qiguang 陳其光 (2013) · China Minzu University Press 中央民族大學出版社