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 Preecha Sukgasame. 1993, "Correlates of the register complex in Kuay", in The Mon-Khmer Studies Journal, vol. 22, pp. 245-251. cite.