R. . Khalid Ibrahem Al-Azzawi and A. . Ali Hussien, “Investigate Model Reference Controller for Sun-Seeker Tracking System Based on Neural Network”, J. eng. sustain. dev., vol. 16, no. 2, pp. 44–52, Jun. 2012, Accessed: Jul. 04, 2025. [Online]. Available: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1198