Kahyoosh Hassan, Turki, and Mustafa Bashar Abdulmelik. “OPTIMAL CONTROLLER FOR VECTOR-CONTROLLED MULTILEVEL INVERETER FED BRUSHLESS DC MOTOR”. Journal of Engineering and Sustainable Development, vol. 22, no. 1, Jan. 2018, pp. 34-46, https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/318.