M. M. Moheyeldein, M. M. M. Salem, K. A. Abd El-gwwad, Ali M. Abd-El-Tawwab,. “Theoretical and Experimental Study of Semi-Active Four-State Switchable Damper Suspension System With Dynamic Air Spring”. International Journal of Advanced Science and Technology 29, no. 3 (January 27, 2020): 10 - 28. Accessed May 5, 2024. http://sersc.org/journals/index.php/IJAST/article/view/3790.