T.Jagadeesh, P.Praveen kumar, S.Mariappan, E.Srithar, and Mr.S.Gnana venkatesh. “Comparison Between Strength of Concrete by Using M Sand and Copper Slag”. International Journal of Intellectual Advancements and Research in Engineering Computations, vol. 6, no. 2, Mar. 2018, pp. 1085-90, https://ijiarec.com/ijiarec/article/view/605.