กรมอนามัย ก. Volume 5 Number 1-2 January - December 2000. Th Dent PH J [internet]. 2000 Dec. 25 [cited 2026 Sep. 19];5(1-2):1-96. available from: https://he02.tci-thaijo.org/index.php/ThDPHJo/article/view/213799