“Speed/Torque/Estimation/and/Control/of/a/DC/Machine/in/Four/Quadrants/Operation/Modes”. Al-Nahrain Journal for Engineering Sciences 21, no. 2 (April 22, 2018): 238–247. Accessed May 2, 2024. https://nahje.com/index.php/main/article/view/NJES21020238.