Makhlouf, Mohamed, and Hala Refat. “Strengthening of Composite Steel-Concrete Beams Openings by Adopting Different Reinforcement Methods”. Advances in Research 19, no. 2 (June 14, 2019): 1-17. Accessed September 23, 2021. https://journalair.com/index.php/AIR/article/view/30119.