Kasa, P. .; Rumakhom, V. .; Chaowarakul, J. . RELATIONSHIP BETWEEN ADMINISTRATIVE SKILLS OF EDUCATIONAL INSTITUTION ADMINISTRATORS AND OPERATIONS ACCORDING TO THE EDUCATIONAL QUALITY ASSURANCE SYSTEM WITHIN EDUCATIO NAL INSTITUTIONSOF SCHOOLS UNDER THE SECONDARY EDUCATION SERVICE AREA OFFICE BANGKOK 2. JMND 2025, 12, 25-35.