Dharmveer Suman, Bharat Bhushan Jain. “Design Simulation of Multilevel Neutral Point Clamped Inverter System for Solar Photovoltaic Applications”. International Journal on Future Revolution in Computer Science &Amp; Communication Engineering, vol. 6, no. 3, Mar. 2020, pp. 26-30, http://www.ijfrcsce.org/index.php/ijfrcsce/article/view/1911.