Isa, Mohammed Faisal, Haruna Sallau Bayel, Muktar Bello, and Joseph Aidan. 2026. “Design and Sizing of an Off-Grid Solar Photovoltaic (PV) System for an Office Unit at Modibbo Adama University, Yola-Nigeria”. Nigerian Journal of Physics 35 (4): 91-100. https://doi.org/10.62292/njp.v35i4.2026.630.