Nguyen, Tan-Tien, Quoc-Hung Nguyen, Thang D. Le, and Hiep D. Le. “General Non-Uniform Quadrilateral Cross-Sections for Thin-Walled FG Sandwich Beams”. Journal of Science and Technology in Civil Engineering (JSTCE) - HUCE 15, no. 2 (April 27, 2021): 90-100. Accessed March 28, 2024. https://stce.huce.edu.vn/index.php/en/article/view/1886.