Nadzar, Imran Hakimi, and Suriana Salimin. “Total Harmonics Distortion of 5 Level and 3 Level Inverter Using Proportional Resonant Controller ”. Evolution in Electrical and Electronic Engineering 2, no. 2 (November 15, 2021): 534–539. Accessed April 8, 2026. https://publisher.uthm.edu.my/periodicals/index.php/eeee/article/view/2058.