Sunisa Paetpipat และ Theerangkoon Warabamrungkul. (2020) 21st Century School Administrator's Skills Effect Professional Learning Communities Under The Office of Chanthaburi Primary Educational Service Area. <i>Journal of Humanities and Social Sciences</i>, <i>39</i>(4), .120-130.Sunisa Paetpipat และ Theerangkoon Warabamrungkul. "21st Century School Administrator's Skills Effect Professional Learning Communities Under The Office of Chanthaburi Primary Educational Service Area". Journal of Humanities and Social Sciences 39 (2020):.120-130.Sunisa Paetpipat และ Theerangkoon Warabamrungkul. 21st Century School Administrator's Skills Effect Professional Learning Communities Under The Office of Chanthaburi Primary Educational Service Area. mahasarakham university:ม.ป.ท. 2020.