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DJVU PDF Weera, O. 2000, "Proto-Kra", in Linguistics of the Tibeto-Burman Area, vol. 23, no. 1, pp. 1-251. cite.

DJVU PDF Weera, O. 1999, "Half and plus is minus", in Linguistics of the Tibeto-Burman Area, vol. 22, no. 1, pp. 201-203. cite.

DJVU PDF Weera, O. 1998, "Tiddim Chin tones in historical perspective", in Linguistics of the Tibeto-Burman Area, vol. 21, no. 1, pp. 235-248. cite.

DJVU PDF Weera, O. 1996, "Sani's Fortis See-Saw and initial devoicing", in Linguistics of the Tibeto-Burman Area, vol. 19, no. 1, pp. 59-64. cite.

DJVU PDF Weera Ostapirat. 1996, "Kadai Dummy *-µ", in The Mon-Khmer Studies Journal, vol. 26, pp. 79-88. cite.

DJVU PDF Weera, O. 1995, "Notes on Laha final -l", in Linguistics of the Tibeto-Burman Area, vol. 18, no. 1, pp. 173-181. cite.

DJVU PDF Weera Ostapirat. 1993, "Evidence of Hlai dental and velar clusters from Savina’s Đày variety", in The Mon-Khmer Studies Journal, vol. 23, pp. 133-137. cite.