B. . Zulkifli, N. . Ali, N. A. . Abdul Hamid, N. . Salleh, and S. R. . Abdullah, “Shear Capacity of Reinforced Concrete Beam with an Opening Retrofit Using Steel Fiber and Metakaolin”, JSMBE, vol. 3, no. 1, pp. 6–14, Aug. 2023, Accessed: Aug. 13, 2026. [Online]. Available: https://journal.uthm.edu.my/index.php/jsmbe/article/view/14945