Duangmanee, PhraMaha Phrom, et al. “Strategy Development for Enhancing Teaching Efficiency through Administrator Leadership: A Qualitative Study of Educational Institutions in the Roi Kaen-Sarasin Provinces Cluster”. Asian Journal of Education and Training, vol. 11, no. 4, Oct. 2025, pp. 165-71, doi:10.20448/edu.v11i4.7514.