กรมอนามัย ส. Volume 12 Number 1 January - June 2007. Thai Dental Public Health Journal, Bangkok, Thailand, v. 12, n. 1, p. 1–95, 2007. Disponível em: https://he02.tci-thaijo.org/index.php/ThDPHJo/article/view/212699. Acesso em: 18 sep. 2026.