REFERENCES
- Edmondson, Jerold A. 2003. “Three Tibcto-Burman languages of Vietnam.” Language variation. Papers on variation and change in the Sinosphere and Indosphere in honor of James A. Mati-soff. Eds. David Bradley, Randy LaPolla, Boyd Michailovsky, and Graham Thurgood. Canberra. Australia: Pacific Linguistics. Pp. 305-320.
- Laver, John. 1994. Principles of phonetics. Cambridge: Cambridge University Press.
- Thurgood, Graham. 1996. “Language contact and the directionality of internal ‘drift’: The development of tones and registers in Chamic.” Language 71:1-31.