Samosorn, Nopparat, Natthamanee Wongkawin, Chartchai Yuenyongpanich, and Morakot Samaphant. 2020. “The Effectiveness of a Smoking Prevention Behavior Promoting Program of Junior High School Students, Landokmai Sub-District, Kamphaeng Phet Province”. Journal of Public Health and Health Sciences Research 2 (1):41-51. https://he01.tci-thaijo.org/index.php/JPHNU/article/view/240319.