Seng Xiang, N., Binti Zambri, N. A. ., & Sy Si, S. (2023). Powered Solar Phone Charger Using Arduino Solar Tracker in UTHM, Pagoh. Progress in Engineering Application and Technology, 4(1), 384-391. https://penerbit.uthm.edu.my/periodicals/index.php/peat/article/view/10016