Patipan Sangkham และ Piangkae Poophayang. (2024) THE DEVELOPMENT OF PERFORMANCE INDICATORS FOR SCHOOL ADMINISTRATORS OF WORLD CLASS STANDARD SCHOOL THE SECONDARY EDUCATIONAL SERVICE AREA OFFICE CHAIYAPHUM. <i>Journal of Research and Innovation for Sustainability (JRIS)</i>, <i>1</i>(2), 37-50.Patipan Sangkham และ Piangkae Poophayang. "THE DEVELOPMENT OF PERFORMANCE INDICATORS FOR SCHOOL ADMINISTRATORS OF WORLD CLASS STANDARD SCHOOL THE SECONDARY EDUCATIONAL SERVICE AREA OFFICE CHAIYAPHUM". Journal of Research and Innovation for Sustainability (JRIS) 1 (2024):37-50.Patipan Sangkham และ Piangkae Poophayang. THE DEVELOPMENT OF PERFORMANCE INDICATORS FOR SCHOOL ADMINISTRATORS OF WORLD CLASS STANDARD SCHOOL THE SECONDARY EDUCATIONAL SERVICE AREA OFFICE CHAIYAPHUM. ห้างหุ้นส่วนจำกัด นวัตกรรมการเรียนรู้สร้างสรรค์:ม.ป.ท. 2024.