Al Biajawi, M. I., and R. Embong. “Influence of Setting Time and Compressive Strength for Coal Bottom Ash As Partial Cement Replacement in Mortar”. Maejo International Journal of Energy and Environmental Communication, vol. 5, no. 3, Sept. 2023, pp. 1-5, doi:10.54279/mijeec.v5i3.250979.