DJVU PDF Nguyen Dinh-Hoa. 1985, "Terminology work in Vietnam", in Papers in Southeast Asian Linguistics No.9, ed. D. Bradley, vol. 9, pp. 119-130. Pacific Linguistics, the Australian National University. cite.

DJVU PDF Vũ Than Phúóng. 1982, "Phonetic Properties of Vietnamese Tones Across Dialects", in Papers in Southeast Asian Linguistics No.8, Tonation, ed. D. Bradley, vol. 8, pp. 55-76. Pacific Linguistics, the Australian National University. cite.