(Thongpan), P. K., J. Phansawang, A. Phansawang, and R. Hansopa. “A Model Development on Prevention Methods of Drug Problems Among Children and Youth in the Northeastern Region”. Dhammathas Academic Journal, vol. 19, no. 3, Sept. 2019, pp. 215-30, https://so06.tci-thaijo.org/index.php/dhammathas/article/view/165479.