Preethi, T. ., P. R. K. . Rajkumar, and M. . Jegan. “Investigation on the Flexural Behaviour of Steel Cold Formed Built up Sections”. International Journal of Integrated Engineering, vol. 12, no. 9, Dec. 2020, pp. 184-90, https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/7368.