1.
กรมอนามัย ส. Volume 23 Number 1 January-June 2018. Th Dent PH J [internet]. 2018 Jun. 30 [cited 2026 Sep. 18];23(1):0-68. available from: https://he02.tci-thaijo.org/index.php/ThDPHJo/article/view/215337