F. Riza, I. Abdul Rahman, and J. Hadipramana, “Rice Husk Ash Pozzolanicity Assessment by Resistivity Method”, ijie, vol. 14, no. 4, pp. 438–445, Jun. 2022, Accessed: May 03, 2024. [Online]. Available: https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/9072