Jarallah, E. W., Hasan, H. M., & Najim, K. B. (2018). Free Vibration Analysis of Rotating Clamped-Clamped Multi-Layered Cylindrical Shells Containing Functionally Graded Middle Layer. Al-Nahrain Journal for Engineering Sciences, 21(1), 153-160. https://doi.org/10.29194/NJES21010153