DJVU PDF Abramson, A.S. 1979, "The coarticulation of tones: an acoustic study of Thai", in Studies in Tai and Mon-Khmer Phonetics and Phonology In Honour of Eugénie J.A. Henderson, ed. T.L. Thongkum et al., pp. 1-9. Chulalongkorn University Press. cite.

DJVU PDF Brown, J.M. 1979, "Vowel length in Thai", in Studies in Tai and Mon-Khmer Phonetics and Phonology In Honour of Eugénie J.A. Henderson, ed. T.L. Thongkum et al., pp. 10-25. Chulalongkorn University Press. cite.