Phatcharin Sonsri และ Sripen Poldech;Winiranee Thassanathep. (2024) Needs for the Development of Personnel Administration of School the Secondary Administrators Secondary Educatianal Service Area Office, Si Sa Ket Yasothon. <i>Journal of Social Sciences Innovations</i>, <i>1</i>(4), 1-17.Phatcharin Sonsri และ Sripen Poldech;Winiranee Thassanathep. "Needs for the Development of Personnel Administration of School the Secondary Administrators Secondary Educatianal Service Area Office, Si Sa Ket Yasothon". Journal of Social Sciences Innovations 1 (2024):1-17.Phatcharin Sonsri และ Sripen Poldech;Winiranee Thassanathep. Needs for the Development of Personnel Administration of School the Secondary Administrators Secondary Educatianal Service Area Office, Si Sa Ket Yasothon. DR.KET INSTITUTE OF ACADEMIC DEVELOPMENT AND PROMOTION:ม.ป.ท. 2024.