Ede, A. N., and A. A. Adegbite. 2013. “Effects of Nigerian Limestone and Superplasticizer on the Hardened Properties of Self Compacting Concrete”. Journal of Chemical, Mechanical and Engineering Practices (JCMEP) 3 (3):17-24. http://icidr.org.ng/index.php/Jcmep/article/view/1099.