Mohd Sidek, M. N. ., M. F. . Arshad, M. A. . Megat Johari, Z. . Mohd Yazid, and A. K. . Ruslan. “Influence of Metakaolin As Partially Cement Replacement Minerals on the Properties of Cement and Concrete”. Scientific Research Journal, vol. 9, no. 2, Dec. 2012, pp. 33-47, doi:10.24191/srj.v9i2.9407.