sophita seekam and P. C. 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”, rtnb, vol. 5, no. 2, pp. 654–669, Aug. 2023.