Dang Van Hieu, and Nguyen Thi Kim Thoa. “Free Vibration of Functionally Graded Carbon Nanotube-Reinforced Composite Beam”. Journal of Military Science and Technology, no. FEE (December 10, 2023): 119–126. Accessed November 22, 2024. https://en.jmst.info/index.php/jmst/article/view/1041.