M. S. . Sainudin, “Properties of Concrete Containing Mussel (Perna viridis) Shell Ash as Partial Cement Replacement”, IJIE, vol. 11, no. 9, pp. 154–163, Dec. 2019, Accessed: Jul. 22, 2026. [Online]. Available: https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/5441