Deepapriya, S. et al. 2018. Comparative Study of Concrete Strength by Partial Replacing of Coarse Aggregate with Crushed Tiles and Sea Shell. International Journal of Engineering & Technology. 7, 4.39 (Dec. 2018), 1038–1041. DOI:https://doi.org/10.14419/ijet.v7i4.39.28357.