Siddique, M., A. Iqbal, T. Nasir, M. K. L. Bhatti, and K. Fatima. “Novel Multilevel Inverter Using a Single H-Bridge”. Pakistan Journal of Engineering and Technology, vol. 3, no. 2, Sept. 2020, pp. 143-50, doi:10.51846/vol3iss2pp143-150.