Ali, Engr., Dr. Abdullah, Dr. Amir, and Engr. Adeel. “Stability Control of Ball and Beam System Using Heuristic Computation Based PI-D and PI-PD Controller”. Technical Journal 24, no. 01 (March 29, 2019): 21-29. Accessed June 28, 2025. https://tj.uettaxila.edu.pk/index.php/technical-journal/article/view/476.