Extracting Four Solar Model Electrical Parameters of Mono-Crystalline Silicon (mc-Si) and Thin Film (CIGS) Solar Modules using Different Methods. jcoeng [Internet]. 2021 Mar. 29 [cited 2024 May 12];27(4):16-32. Available from: https://joe.uobaghdad.edu.iq/index.php/main/article/view/1367