Saranya Pooapthong และ Somjai Pumipuntu. (2021) Transformational Leadership of Administrators Affecting Teamwork Efficiency of Private Schools in Roi Et Province. <i>Journal of Humanities and Social Sciences Mahasarakham University</i>, <i>40</i>(4), 99-110.Saranya Pooapthong และ Somjai Pumipuntu. "Transformational Leadership of Administrators Affecting Teamwork Efficiency of Private Schools in Roi Et Province". Journal of Humanities and Social Sciences Mahasarakham University 40 (2021):99-110.Saranya Pooapthong และ Somjai Pumipuntu. Transformational Leadership of Administrators Affecting Teamwork Efficiency of Private Schools in Roi Et Province. Division of Research Facilitation and Dissemination Mahasarakham University:ม.ป.ท. 2021.