Saad, S. A., Shafiq, N., Ali, M., & Osman, M. M. (2018). 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(4.35), 342-346. https://doi.org/10.14419/ijet.v7i4.35.22759