DJVU PDF Tamara, P. 2010, "Copula of identity in Old Khmer", in The Mon-Khmer Studies Journal, vol. 39, pp. 61-74. cite.

DJVU PDF Tamara, P. 2000, "Logical-semantic approaches to Khmer grammar: the category of numbers", in The Fifth International Symposium on Languages and Linguistics, Hochiminh City, pp. 337-343. Vietnam National University, Ho Chi Minh City University of Social Sciences and Humanities. cite.