V. Karthikeyan,R.Ranjith. Minimization of Total Harmonic Distorsion for Cascaded Multilevel Inverter with Reduced Number of Switches, International Journal of Computing Algorithm, Vol. 7, Issue 1, 2018, pp. 27-31, DOI: 10.20894/IJBI.105.007.001.007, ISSN: 2278-2397