Abdulsalam, H. et al. 2025. Effect of Ga/(In+Ga) ratio on the Efficiency of Cu(InxGa1-x)Se2 (CIGS) Thin-Film Solar Cells. Nigerian Journal of Physics. 34, 4 (Oct. 2025), 89–94. DOI:https://doi.org/10.62292/10.62292/njp.v34i4.2025.440.