Jansook, P., Sermsuk, S., & Boonda, P. (2019). A study of the current state and need of enhance Dental Health competency for teacher. Humanities and Social Sciences Journal of Pibulsongkram Rajabhat University, 13(2), 566–579. Retrieved from https://so01.tci-thaijo.org/index.php/GraduatePSRU/article/view/180306