Ali A. Alrawe, M., & Hassan Husien, M. (2023). A Comparative Study of Total Harmonic Distortion betweenTwo Topologies 27- and 31 Multi Level Inverter. Al-Rafidain Engineering Journal (AREJ), 28(1), 173–180. https://doi.org/10.33899/rengj.2022.134999.1192