Hmong–Mien Languages]]> Theraphan Luangthongkum]]> 1988-05-22/1989-05-23]]> tha]]> Chiang Rai (Thailand); Phayao (Thailand); Lampang (Thailand)]]> Hmong–Mien Languages]]> Theraphan Luangthongkum]]> 1993-04-08/1993-04-17]]> Tones in Mien-Yao: An Acoustic Study Project]]> tha]]> Chiang Rai (Thailand)]]> Austroasiatic Languages]]> Theraphan Luangthongkum]]> 1989-01-12]]> tha]]> ium]]> Pattani (Thailand)]]>