Mangi SA, Wan Ibrahim MH, Jamaluddin N, et al. A Review on Potential use of Coal Bottom Ash as a Supplementary Cementing Material in Sustainable Concrete Construction. IJIE. 2019;10(9). Accessed April 9, 2026. https://penerbit.uthm.edu.my/ojs/index.php/ijie/article/view/2496