Thongdee, A. , Dejbamrung, S. , Dejbamrung, S. , Surasacron, W. and Jammuang, J. 2024. LEADERSHIP OF SCHOOL ADMINISTRATORS AND HAPPINESS OF WORKING IN SCHOOL UNDER RATCHABURI PRIMARY EDUCATIONAL SERVICE AREA OFFICE 1. Journal of MCU Nakhondhat. 11, 7 (Jul. 2024), 47–58.