DJVU PDF Preecha Sukgasame. 2005, "Phonological variations and changes due to language contact: A case study of consonants in four Kuai-Kui (Suai) dialects", in The Mon-Khmer Studies Journal, vol. 35, pp. 37-54. cite.

DJVU PDF Hsiaohang, Q. 2005, "The ancient Chinese origin of some Mon-Khmer words", in The Mon-Khmer Studies Journal, vol. 35, pp. 183-187. cite.