Al-khazarji, H. A. H., Abdulsada, M. A., & Abduljabbar, R. B. (2020). Robust Approach of Optimal Control for DC Motor in Robotic Arm System using Matlab Environment. International Journal on Advanced Science, Engineering and Information Technology, 10(6), 2231–2236. https://doi.org/10.18517/ijaseit.10.6.8923