กฤษฎาพงษ์ ส. (2007) “Why is dental health education not effective?”, Thai Dental Public Health Journal. Bangkok, Thailand, 12(1), pp. 79–88. available at: https://he02.tci-thaijo.org/index.php/ThDPHJo/article/view/212694 (accessed: 19 September 2026).