A. Abbass, E., and A. M. Ali. “Effect of Changing Magnet Material on Cogging Torque and Torque Ripple of Brushless DC Motor”. Al-Iraqia Journal for Scientific Engineering Research, vol. 2, no. 1, Mar. 2023, pp. 57-67, https://ijser.aliraqia.edu.iq/index.php/ijser/article/view/61.