Sawangphon, N., & Vaisopha, K. (2024). Servant Leadership of School Administrators Under Development of Learning Encouragement, Education Ministry, Loei Province: Servant Leadership of School Administrators Under Development of Learning Encouragement, Education Ministry, Loei Province. RATANABUTH JOURNAL, 6(3), 58–71. retrieved from https://so07.tci-thaijo.org/index.php/rtnb/article/view/5439