1. Abramson, A. S. (1962). The vowels and tones of standard Thai: Acoustical measurements and experiments (Vol. 20). Bloomington, IN: Indiana University Research Center in Anthropology, Folklore, and Linguistics.
2. Static and dynamic acoustic cues in distinctive tones;Abramson;Language and Speech,1978
3. Use of phonation type in distinguishing tone: The case of Green Mong;Andruski;Journal of the International Phonetics Association,2000
4. Syllables as units in infant speech perception;Bertoncini;Infant Behavior and Development,1981
5. Emergence of language-specific constraints in perception of non-native speech: a window on early phonological development;Best,1993