กรมอนามัย ก. Volume 6 Number 1 January - June 2001. Thai Dental Public Health Journal, Bangkok, Thailand, v. 6, n. 1, p. 1–74, 2001. Disponível em: https://he02.tci-thaijo.org/index.php/ThDPHJo/article/view/213531. Acesso em: 18 sep. 2026.