H. Karam, E. (2012) “Reduce the Effect of Disturbance from Linear Unstable Second Order Systems Using Hybrid Controller Scheme”, Journal of Engineering and Sustainable Development, 16(4), pp. 241–255. Available at: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1239 (Accessed: 4 June 2026).