M. F. . Yusoff and S. . Sy Yi, “Development of Portable Solar-Tracked PV Powerbank Station”, EEEE, vol. 4, no. 1, pp. 380–388, May 2023, Accessed: Jul. 18, 2024. [Online]. Available: https://penerbit.uthm.edu.my/periodicals/index.php/eeee/article/view/10822