Kouhlane, Yacine, Djoudi Bouhafs, Ogechi-Vivian Nwadiaru, Nacer-Eddine Demagh, and Allaoua Chibani. 2022. “Optical Properties Evaluation of CuIn1-XGaxSe2 Thin Films Using OPAL2 Calculator”. Journal of Sustainable Materials Processing and Management 2 (2): 19-25. https://publisher.uthm.edu.my/ojs/index.php/jsmpm/article/view/11512.