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

"Documentation and grammatical description of Yakkha, Nepal" HRELP Abstract . Schackow, Diana (2012) · http://www.hrelp.org/grants/projects/index.php?projid=283

Personal Communication . Gregory Anderson (2012) ·

Aspects of Yakkha Grammar . Schackow, Diana (2010) · Working paper, Universität Leipzig.

Yakkha-Nepali-English Dictionary. (Kirat Yakkha Chumma) . Kongren, Ramjee (2007) · Kathmandu: Kendriya Samiti

A grammar of Yakkha . Diana Schackow (2015) · Studies in Diversity Linguistics · Vol. 7 · Language Science Press http://langsci-press.org/catalog/book/66