Bujang H, Aman MY, Arumugam TN, Taher MNM. Physical Characterization of Modified Asphalt Binder with Differing Fly Ash Geopolymer Contents. IJIE. 2023;15(1):331-338. Accessed April 9, 2026. https://penerbit.uthm.edu.my/ojs/index.php/ijie/article/view/9358