Maisarah Nur Noraini, “Effect of Hydrophobic Silica-Based Admixture on the Physical Performance and Durability of Waterproof Geopolymer Composite”, IJIE, vol. 17, no. 7, pp. 209–219, Dec. 2025, Accessed: Apr. 15, 2026. [Online]. Available: https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/22659