Adeoye, M. A.; Obi, S. N. .; IBRAHIM-RAJI, T. B. .; Yahaya, A. K. . Assessing Professional Development Needs: A Study on Head Teachers’ Competencies for Effective School Management in Niger State. ESSS 2025, 6 (1), 13-33. https://doi.org/10.37134/esss.vol6.1.2.2025.