Buacharoen, Parichat, and Prapasorn Somsatan. “Factors Affecting Self-discipline of Students at Ragamangala University of Technology Lanna Chiangmai”. Dhammathas Academic Journal 22, no. 4 (December 27, 2022): 1–14. accessed January 7, 2026. https://so06.tci-thaijo.org/index.php/dhammathas/article/view/259505.