DJVU PDF Anivan, S. 1988, "Evolution of Bangkok Tones", in The International Symposium on Language and Linguistics, ed. C. Bamroongraks et al., Bangkok, Thailand, pp. 7-21. Thammasat University. cite.

DJVU PDF Tingsabadh, M.R.K. 1988, "Loss of preeminence of citation forms in the study of tones on Thai dialects", in The International Symposium on Language and Linguistics, ed. C. Bamroongraks et al., Bangkok, Thailand, pp. 224-227. Thammasat University. cite.