Burhanudin MK, Wan Ibrahim MH, Putra Jaya R, Umniati BS. Characterisation of Ground Coal Bottom Ash With Different Grinding Times . ijscet. 2023;14(3):49-56. Accessed May 17, 2024. https://penerbit.uthm.edu.my/ojs/index.php/IJSCET/article/view/13841