Agus, S., Sukanti, L., Rohaeni, A. and Sulastri, N. 2022. Managerial Competency of School Principles in Improving the Performance of Teachers and Educational Performances in School. Indonesian Journal of Social Science Research. 3, 1 (Jun. 2022), 12-20. DOI:https://doi.org/10.11594/ijssr.03.01.02.