DJVU PDF Nguyễn Phú Phong. 2004, "Verbal classifiers in Vietnamese", in Papers from the Eleventh Annual Meeting of the Southeast Asian Linguistics Society, ed. S. Burusphat, Tempe, Arizona, pp. 575-582. Arizona State University, Program for Southeast Asian Studies. cite.
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DJVU PDF Phong, N.P. 1996, "Negation in Vietnamese and in some of the Viet Muong languages", in The Fourth International Symposium on Language and Linguistics, Thailand, pp. 563-568. Institute of Language and Culture for Rural Development, Mahidol University. cite.
DJVU PDF Nguyễn Phú Phong. 1992, "Vietnamese demonstratives revisited", in The Mon-Khmer Studies Journal, vol. 20, pp. 127-136. cite.