Koshe Hareru, W., Belayneh Asfaw, F. ., & Ghebrab , T. . (2022). Physical and Chemical Characterization of Coffee Husk Ash Effect on Partial Replacement of Cement in Concrete Production. International Journal of Sustainable Construction Engineering and Technology, 13(1), 167–184. Retrieved from https://penerbit.uthm.edu.my/ojs/index.php/IJSCET/article/view/9509