Othman, Mohamed Faizal, and Afarulrazi Abu Bakar. “Analysis of Total Harmonic Distortion in Inverter Systems: A Comparative Study of Square Wave, Phase Shift and Multilevel Inverters”. Journal of Electronic Voltage and Application, vol. 6, no. 1, June 2025, pp. 19-28, https://penerbit.uthm.edu.my/ojs/index.php/jeva/article/view/20721.