DJVU PDF Jenner, P. 1992, "A note on lexical replacement in Khmer", in The Mon-Khmer Studies Journal, vol. 21, pp. 179-184. cite.
DJVU PDF Hayes, L.V.H. 1992, "Vietic and Viet-Muong: a new subgrouping in Mon-Khmer", in The Mon-Khmer Studies Journal, vol. 21, pp. 211-228. cite.