DJVU PDF Ferlus, M. 1978, "Reconstruction de /TS/ et /TŠ/ en Mon-Khmer", in The Mon-Khmer Studies Journal, vol. 7, pp. 1-38. cite.
DJVU PDF Smith, K. 1978, "Some recent works on Mon-Khmer", in The Mon-Khmer Studies Journal, vol. 7, pp. 297-307. cite.