A. Umar Abubakar and M. S. Tabra, “Prediction of Compressive Strength in High Performance Concrete with Hooked-End Steel Fiber using K-Nearest Neighbor Algorithm”, IJIE, vol. 11, no. 1, May 2019, Accessed: Aug. 07, 2026. [Online]. Available: https://journal.uthm.edu.my/index.php/ijie/article/view/3535