Mohammad Abdul kreem, Omer. “Influence of Concrete Mix Proportions and Curing Regimes on Density, Absorption, and Voids in Hardened Concrete”. Al-Rafidain Engineering Journal (AREJ) 20, no. 4 (August 28, 2012): 103–117. Accessed September 7, 2025. https://ojs.uomosul.edu.iq/index.php/arej/article/view/30512.