กรมอนามัย ส. Volume 23 Number 1 January-June 2018. Thai Dental Public Health Journal, Bangkok, Thailand, v. 23, n. 1, p. 0–68, 2018. Disponível em: https://he02.tci-thaijo.org/index.php/ThDPHJo/article/view/215337. Acesso em: 18 sep. 2026.