N. S. A. . Yaro, “Utilization of Palm Oil Mill Residue as Sustainable Pavement Materials: A Review”, IJIE, vol. 13, no. 3, pp. 66–78, Jun. 2021, Accessed: Aug. 07, 2026. [Online]. Available: https://journal.uthm.edu.my/index.php/ijie/article/view/8902