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

Australia and the Pacific ( pp. 424-557 ) . Stephen A Wurm (2007) · In Encyclopedia of the World's Endangered Languages Routledge

Thai, Kadai, and Indonesian: A New Alignment in Southeastern Asia ( pp. 576-601 ) . P. K. Benedict (1942) · American Anthropologist. 44 (4) ·

The Tai-Kadai peoples of Hainan island and their languages ( pp. 189-203 ) . Theraphan L-Thongkum (2001) · In Essays in Tai linguistics edited by M.R. Kalaya Tingsabadh and Arthur S. Abramson · Bangkok: Chulalongkorn University Press