Saad, Siti Asmahani, Nasir Shafiq, Maisarah Ali, and Mariana Mohamed Osman. “Analysis by Means of Surface Response to Chemical Composition and Pozzolanic Reactivity of Ultrafine Treated Rice Husk Ash (UFTRHA) As Cementing Additive Material”. International Journal of Engineering & Technology 7, no. 4.35 (November 30, 2018): 342–346. Accessed May 3, 2024. https://sciencepubco.com/index.php/ijet/article/view/22759.