Al-Hassani, Hisham, and Samer Hannawayya. 2014. “Interaction Diagrams of Short Rectangular RPC Columns Under Combined Axial Load Plus Uniaxial Bending”. Journal of Engineering and Sustainable Development 18 (4): 1-15. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/827.