กรมอนามัย ก. Volume 7 Number 1 January - June 2002. Thai Dental Public Health Journal, Bangkok, Thailand, v. 7, n. 1, p. 1–93, 2002. Disponível em: https://he02.tci-thaijo.org/index.php/ThDPHJo/article/view/213211. Acesso em: 19 sep. 2026.