ชัยชนะ ร. (2018) “Guidelines for the Development of Teaching Profession Competency of Secondary School Teachers under The Office of Savannakhet Provincial Education and Sports Service , Lao People’s Democratic Republic”, Journal of Innovation and Learning Sciences, 11(4), pp. 130–141. available at: https://so02.tci-thaijo.org/index.php/EDGKKUJ/article/view/125448 (accessed: 13 September 2026).