Halima, H., Ampa, A.T. and 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 (Nov. 2025), 184–198. DOI:https://doi.org/10.59175/pijed.v4i2.790.