กรมอนามัย ก. Volume 1 Number 1 January - July 1993. Thai Dental Public Health Journal, Bangkok, Thailand, v. 1, n. 1, p. 1–51, 1993. Disponível em: https://he02.tci-thaijo.org/index.php/ThDPHJo/article/view/215083. Acesso em: 19 sep. 2026.