Freddy Tan Kheng Suan, Ahmad Syed, Tara Kalayani Sandipamu,. 2020. “An Improved Mosfet Neutral-Point-Clamped Full-Bridge Transformerless Inverter for High Efficiency Distributed Photovoltaic System”. International Journal of Advanced Science and Technology 29 (1), 153 -67. http://sersc.org/journals/index.php/IJAST/article/view/2987.