DJVU PDF Bradley, D. 1992, "Language policy for minority languages in Thailand and China", in The Third International Symposium on Language and Linguistics, Bangkok, Thailand, pp. 921-928. Chulalongkorn University. cite.

DJVU PDF Steinhauer, H. 1992, "The Indonesian linguistic scene: 500 languages now, 50 in the next century?", in The Third International Symposium on Language and Linguistics, Bangkok, Thailand, pp. 1463-1477. Chulalongkorn University. cite.