Nguyen, Tan-Tien, Quoc-Hung Nguyen, Thang D. Le, and Hiep D. Le. 2021. “General Non-Uniform Quadrilateral Cross-Sections for Thin-Walled FG Sandwich Beams”. Journal of Science and Technology in Civil Engineering (JSTCE) - HUCE 15 (2), 90-100. https://doi.org/10.31814/stce.nuce2021-15(2)-08.