A. Ali, A. (2013) “Experimental and Theoretical Comparative Study of Circular Steel Tubular Columns Filled with Self-Compacting Concrete under Axial Concentric Loading”, Journal of Engineering and Sustainable Development, 17(4), pp. 27–47. Available at: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/971 (Accessed: 10 May 2025).