ตั้งนพวรรณ์ น. and ศรีเศรษฐนิล ส. (2008) “Influential factors of wardens in taking school children to get dental services at Takfa Hospital, Nakhon Sawan”, Thai Dental Public Health Journal. Bangkok, Thailand, 13(3), pp. 95–105. available at: https://he02.tci-thaijo.org/index.php/ThDPHJo/article/view/208851 (accessed: 18 September 2026).