N. I. Azlan, A. H. . Ismail, and A. Kusbiantoro, “Strength Development of Geopolymer Concrete Containing Palm Oil clinker Powder”, peat, vol. 3, no. 1, pp. 351–358, Jun. 2022, Accessed: Jul. 18, 2024. [Online]. Available: https://publisher.uthm.edu.my/periodicals/index.php/peat/article/view/6276