Jamellodin, Zalipah, Mohamad Arif Jamal, Norazreen Nor Azhar, Masni A. Majid, Norhafizah Salleh, Noor Azlina Abdul Hamid, and Suraya Hani Adnan. 2018. “Binary Effect of Palm Oil Fuel Ash and Eggshell Waste Powder on Heat of Hydration for Mortar”. International Journal of Engineering & Technology 7 (4.22): 27-30. https://doi.org/10.14419/ijet.v7i4.22.22184.