Nguyen, M., T. Nguyen, and T. Bui. “Finite Element Modeling of Tapered Concrete Filled Steel Tubular Columns under Axial Compression”. Science & Technology Development Journal - Engineering and Technology, Vol. 4, no. 4, Jan. 2022, pp. 1284-92, doi:https://doi.org/10.32508/stdjet.v4i4.937.