Dang Van Hieu, Nguyen Thi Kim Thoa. Free vibration of functionally graded carbon nanotube-reinforced composite beam. JMST [Internet]. 2023 Dec. 10 [cited 2026 Jan. 26];(FEE):119-26. Available from: https://jmst.mod.gov.vn/index.php/jmst/article/view/1041