Hongsinlark, N., M. Boonpichetvong, and T. Pannachet. “Finite Element Modeling of Axially Loaded Concrete Columns With Metal Sheet Conf Inement”. Engineering and Applied Science Research, vol. 41, no. 4, Jan. 2015, pp. 517-25, https://ph01.tci-thaijo.org/index.php/easr/article/view/28315.