M. I. S. Batisah and R. Aziz, “Cogging Torque Reduction of IPMSM by Adjusting the Stator Opening Width”, EEEE, vol. 3, no. 2, pp. 343–350, Nov. 2022, Accessed: Aug. 15, 2026. [Online]. Available: https://periodical.uthm.edu.my/index.php/eeee/article/view/8574