K. S. Al-Hachamee, Eyad, and Hussain A. A. Al-Quraishi. “Penetration Depth Local Effect of Impactors on Concrete Structures”. Journal of Engineering and Sustainable Development 14, no. 1 (April 1, 2010): 114–121. Accessed April 19, 2025. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1483.