Chulnoul, Punyanuch, Manirat Therawiwat, Nirat Imamee, and Supreya Tansakul. 2019. “An Effect of Problem-Based Learning to Prevent Amphetamine Use Among Grade 8 Student, Nakornprathom Province”. Thai Journal of Health Education 34 (1):1-14. https://he01.tci-thaijo.org/index.php/muhed/article/view/173873.