Jarallah, Ehaab W., Hama M. Hasan, and Khalid B. Najim. “Free Vibration Analysis of Rotating Clamped-Clamped Multi-Layered Cylindrical Shells Containing Functionally Graded Middle Layer”. Al-Nahrain Journal for Engineering Sciences 21, no. 1 (February 10, 2018): 153–160. Accessed May 30, 2026. https://nahje.journalpath.com/nahje/article/view/434.