Na bangchang, T., and K. Saichai. “Administration According to the Guidelines for the Prevention and Solution of Drug Problems of Educational Institutions under the Office of Secondary Education Service Area Nonthaburi”. Journal of Humanities and Social Sciences, Rajapruk University, vol. 8, no. 3, Dec. 2022, pp. 248-63, https://so03.tci-thaijo.org/index.php/rpu/article/view/265315.