C. N. Rao, G. D. Sukumar, and R. V. Kumar, “Torque Ripple Reduction in Brushless DC Motor by Using SPWM and SVPWM Techniques”, IJET, vol. 7, no. 4.24, pp. 71–75, Nov. 2018, doi: 10.14419/ijet.v7i4.24.21858.