แก้วสุข ธ., & หกสุวรรณ ส. (2016). The Development of Guidelines for the Prevention of Drugs in Schools under the Supervision of the Secondary Educational Service Area Office 29. Journal of Roi Et Rajabhat University, 10(2), 107–116. Retrieved from https://so03.tci-thaijo.org/index.php/reru/article/view/176392