Mouffag Hajim, Rabee, and Yahya Taher Qassim. “Reconfigurable Hardware Based Programmable Digital Circuit Design for a Rotational Stepper Motor”. Al-Rafidain Engineering Journal (AREJ) 16, no. 1 (February 1, 2008): 15–24. Accessed October 5, 2025. https://alaw.uomosul.edu.iq/index.php/arej/article/view/31536.