M. Rathipraba, M. Vignesh, S. Vijayanand,. “Numerical Investigation on Strength and Behaviour of Cold Formed Steel Built-up Open and Closed Section Columns”. International Journal of Advanced Science and Technology 29, no. 3 (March 17, 2020): 5200 - 5211. Accessed May 5, 2024. http://sersc.org/journals/index.php/IJAST/article/view/6026.