Nzarugarura, M.E. and Ndagijimana, J.-B. 2025. Headteachers’ professional development programs and effective school leadership: A case study of Rwandan secondary schools in Rubavu District. African Quarterly Social Science Review. 2, 3 (Aug. 2025), 150–167. DOI:https://doi.org/10.51867/AQSSR.2.3.14.