I. Khalel, Raid. “Torsional Behavior of High-Strength Reinforced Concrete Beams”. Journal of Engineering and Sustainable Development 17, no. 1 (March 1, 2013): 317–332. Accessed April 3, 2025. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1111.