Mohammed, Qutaibah M., and Hamad M. Hasan. “Static Analysis of Two-Directional Functionally Graded Cylindrical Panels under the Effect of Symmetric Loads Using Finite Element Method (FEM)”. Anbar Journal of Engineering Science, vol. 10, no. 2, Nov. 2019, pp. 408-24, https://doi.org/10.37649/aengs.2022.171386.