Halima, H., Ampa, A. T., & Azis, F. (2025). The Role of School Principals’ Managerial Competence in Improving Educational Performance: A Systematic Literature Review and Implications for Disadvantaged Regions. PPSDP International Journal of Education, 4(2), 184–198. https://doi.org/10.59175/pijed.v4i2.790