J. Husna, N.A. Jamil, K.S. Siow, et al. Numerical Optimization of Plasmonic CuO-Based Semi-Transparent Thin Film Solar Cell Device via L9 Taguchi Orthogonal Array Method and ANOVA. IJIE. 2024;16(9):264-272. Accessed April 9, 2026. https://penerbit.uthm.edu.my/ojs/index.php/ijie/article/view/19488