DJVU PDF Bauer, C. 1992, "OKhm. ‘w-, ‘y-, ‘N-", in The Mon-Khmer Studies Journal, vol. 21, pp. 194-198. cite.
DJVU PDF Thomas, D. 1992, "On sesquisyllabic structure", in The Mon-Khmer Studies Journal, vol. 21, pp. 206-210. cite.