อรุณรัตนดิลก ส., & คําชุม เ. (2008). Application of the Learning and Self - Efficacy Theories on Gingivitis Prevention Behavior among Primary School Students of Nonthaburi Province. Thai Dental Public Health Journal, 13(2), 33–45. retrieved from https://he02.tci-thaijo.org/index.php/ThDPHJo/article/view/209824