Pham, Vu Nam, Dinh Kien Nguyen, and Buntara Sthenly Gan. “Vibration Analysis of Two-Directional Functionally Graded Sandwich Beams Using a Shear Deformable Finite Element Formulation”. Advances in Technology Innovation 4, no. 3 (June 28, 2019): 152–164. Accessed November 22, 2024. https://ojs.imeti.org/index.php/AITI/article/view/4099.