Prabhat Kumar Singh, and K. P. Singh. “MultilevelInverter Technology for Induction Motor Drive by Sinusoidal PWM Technique”. International Journal of Advance Engineering and Research Development (IJAERD), vol. 2, no. 7, July 2015, pp. 30-36, https://ijaerd.com/index.php/IJAERD/article/view/938.