Raad, Haider, and Ali Sabah. “The Behavior of Punching Shear Strength on Geo-Polymer Concrete Circular Slabs With Openings: A Review”. Al-Rafidain Journal of Engineering Sciences, vol. 3, no. 1, Dec. 2024, pp. 42-64, https://doi.org/10.61268/vahz9w72.