NGOC-QUANG, N. Etude Acoustique Comparative des Tons "hoi" - "nga" en Vietnamien du Nord et du Sud. Canadian Acoustics, [S. l.], v. 22, n. 3, p. 143–144, 1994. Disponível em: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/890. Acesso em: 23 nov. 2024.