กรมอนามัย ก. Volume 6 Number 2 July - December 2001. Thai Dental Public Health Journal, Bangkok, Thailand, v. 6, n. 2, p. 1–132, 2001. Disponível em: https://he02.tci-thaijo.org/index.php/ThDPHJo/article/view/213487. Acesso em: 19 sep. 2026.