I. M. W. Tie, M. A. Mohammad Azmi, N. Q. Maridan, and M. S. H. Mohd Ramdzam, “An Experimental Study on Concrete Strength Using Egg Shell Powder (ESP) as Partial Replacement of Cement”, MARI, vol. 3, no. 1, pp. 193–199, Feb. 2022, Accessed: Jul. 18, 2024. [Online]. Available: https://penerbit.uthm.edu.my/periodicals/index.php/mari/article/view/4225