R. J. Aziz, L. K. Al-Hadithy, and S. M. Resen, “Finite Element Modelling of Concrete Filled Double Skin Steel Tubular Columns under Cyclic Axial Compression Load”, NJES, vol. 20, no. 2, pp. 326–340, Mar. 2017, Accessed: Dec. 19, 2024. [Online]. Available: https://nahje.com/index.php/main/article/view/112