DJVU PDF Jacob, J.M. 1993, "The structure of the word in Old Khmer", in Cambodian Linguistics, Literature and History, ed. D.A. Smyth, pp. 1-17. School of Oriental and African Studies, University of London. cite.

DJVU PDF Jacob, J.M. 1993, "Some problems arising from the orthography of consonants on the Khmer inscriptions", in Cambodian Linguistics, Literature and History, ed. D.A. Smyth, pp. 103-127. School of Oriental and African Studies, University of London. cite.