E. E. Hekal, M. Abd-El-Khalek, M. S. Amin, & F. A. Selim. (2021). Effect of MgSO4 Solution on the Physicochemical and Mechanical Properties of OPC-Metakaolin and OPC-Metakaolin-Limestone Blends. Journal of Material Science and Technology Research, 2(2), 25–37. https://doi.org/10.15377/2410-4701.2015.02.02.1