Sheikh Khalid, F. et al. 2018. An Utilization of Palm Fuel Ash (POFA) and Ceramic Waste as Cement Materials Replacement in Concrete Production. International Journal of Engineering & Technology. 7, 3.9 (Jul. 2018), 89–92. DOI:https://doi.org/10.14419/ijet.v7i3.9.15284.