H. . Nasir Ghadhban Mohammed Al-Maliki, “Experimental Behavior of Hollow Non-Prismatic Reinforced Concrete Beams Retrofit With CFRP Sheets”, J. eng. sustain. dev., vol. 17, no. 5, pp. 224–237, Nov. 2013, Accessed: May 05, 2025. [Online]. Available: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1096