seekam, sophita, and Phrakrupalad Chakrapol Siritharo. “School Administration According to Brahmavihara 4 of School Administrators under Loei Provincial Office of the Non-Formal and Informal Education: School Administration According to Brahmavihara 4 of School Administrators under Loei Provincial Office of the Non-Formal and Informal Education”. RATANABUTH JOURNAL 5, no. 2 (August 31, 2023): 654–669. accessed June 10, 2025. https://so07.tci-thaijo.org/index.php/rtnb/article/view/3028.