DJVU PDF Gandour, J.T., Potisuk, S., Dechongkit, S. and Suvit, P. 1992, "Tonal coarticulation in Thai disyllabic utterances: a preliminary study", in Linguistics of the Tibeto-Burman Area, vol. 15, no. 1, pp. 93-110. cite.

DJVU PDF Gandour, J.T., Petty, S.H., Dardarananda, R., Dechongkit, S. and Mukngoen, S. 1986, "The acquisition and dissolution of the voicing contrast in Thai", in Linguistics of the Tibeto-Burman Area, vol. 9, no. 2, pp. 36-52. cite.