Simran, Shainey, and Roshan Nayak. “Multi-Level PWM Inverter for PV Systems Improving the THD”. SAMRIDDHI : A Journal of Physical Sciences, Engineering and Technology 14, no. 02 (June 30, 2022): 211-215. Accessed November 30, 2022. https://smsjournals.com/index.php/SAMRIDDHI/article/view/2730.