sukchai, A., N. Ruangsan, and V. Thongdee. “Learning Management by Using The Four Iddhipada DoctrinceIn The 21st Century of Students at Banphaiphitthayakhom School, Banphai District,Khonkaen Province”. Journal of Modern Learning Development, vol. 5, no. 1, Feb. 2020, pp. 62-78, https://so06.tci-thaijo.org/index.php/jomld/article/view/240404.