Wongkiat, J. , Wiwatchankit , D. and Dolprasit , D. 2022. PERSONNEL ADMINISTRATION ON THE EFFICIENCY OF SCHOOL ADMINISTRATION OF EDUCATIONAL PERSONNEL BANKRANG(PHRAKHAOCHAIYASIT) SCHOOL MUANG DISTRICT, PHITSANULOK PROVINCE . Journal of Interdisciplinary Development (Humanities and Social Sciences). 1, 1 (Jun. 2022), 52–63.