Bibliography

Bibliography of Vitality:
Driem, George Van. 2007. "South Asia and the Middle East." In Encyclopedia of the World's Endangered Languages, edited by Christopher Mosely. 289-348. London and NewYork: Routledge.
Bibliography of Locations:
2005. "The World Atlas of Language Structures." edited by Bernard Comrie et al. Oxford University Press.
Bibliography of Context:
Webster, Jeffrey D. 2001. A sociolinguistic study of Limbu. Journal of Nepalese Literature, Art and Culture 4. 51-84.