1. The vowels and tones of standard Thai: acoustic measurements and experiments;Abramson;IJAL,1962
2. From Ancient Thai to Modern Dialects;Brown,1965
3. Studies in Thai dialectology;Egerod;Acta Orientalia,1961
4. The features of the larynx: N-ary or binary?;Gandour,1974
5. Level and contour tones: phonological space;Gandour,1974