“Effect of Size and Location of Openings on the Structural Behavior of Walls of Reinforced Self-Compacting Concrete Incorporating Attapulgite As a Partial Replacement of Cement”. Journal of Al-Rafidain University College For Sciences ( Print ISSN: 1681-6870 ,Online ISSN: 2790-2293 ) 55, no. 1 (September 28, 2024): 105–121. Accessed April 16, 2026. https://jrucs.iq/index.php/JAUCS/article/view/676.