Boran, S., C. Nabkasorn, and D. Vatanasin. “The Effects of Supportive Group Psychotherapy on Perceived Self-Efficacy and Intention to Drug Abstinence Among Adolescents With Amphetamine Addiction”. Journal of Phrapokklao Nursing College, Chanthaburi, vol. 30, no. 1, May 2019, pp. 173-87, https://he01.tci-thaijo.org/index.php/pnc/article/view/175641.