M. . Kumar, Z. A Memon, and M. A. Uqaili, “Design and Implementation of Hybrid Active Power Filter (HAPF) for UPS System”, ijie, vol. 12, no. 6, pp. 229–238, Jul. 2020, Accessed: Jul. 18, 2024. [Online]. Available: https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/6727