K. Awad, Hadeel, Rawaa K. Aboud, and Shatha D. Mohammed. “Influence of Percentage Replacement of Metakaolin on Different Concrete Types Exposed to Internal Sulphate Attack”. International Journal of Engineering & Technology 7, no. 4.20 (November 28, 2018): 514–519. Accessed November 24, 2024. https://sciencepubco.com/index.php/ijet/article/view/26253.