Abdulsalam, Hassan, Habiba Garba Ahmad, and Fatima Musa Lariski. “Effect of Ga (In+Ga) Ratio on the Efficiency of Cu(InxGa1-x)Se2 (CIGS) Thin-Film Solar Cells”. Nigerian Journal of Physics 34, no. 4 (October 30, 2025): 89–94. Accessed November 9, 2025. https://njp.nipngr.org/index.php/njp/article/view/440.