M. K. S. . Bakar, N. H. Othman, M. S. . Sainudin, F. S. . Khalid, and K. . Muthusamy, “Utilisation of Mussel Shell Ash and Palm Oil Leaves Ash as Admixture in Concrete”, ijie, vol. 12, no. 8, pp. 310–317, Sep. 2020, Accessed: Jul. 23, 2024. [Online]. Available: https://penerbit.uthm.edu.my/ojs/index.php/ijie/article/view/5322