Abdul Wahab, A., M. F. Arshad, Z. Ahmad, A. R. Mohd Ridzuan, and M. H. Wan Ibrahim. “Potential of Bottom Ash As Sand Replacement Material to Produce Sand Cement Brick”. International Journal of Integrated Engineering, Vol. 10, no. 8, Dec. 2018, https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/2478.