กรมอนามัย ส. Volume 23 Number 2 July - December 2018. Thai Dental Public Health Journal, Bangkok, Thailand, v. 23, n. 2, p. 1–54, 2018. Disponível em: https://he02.tci-thaijo.org/index.php/ThDPHJo/article/view/206609. Acesso em: 18 sep. 2026.