Pasadena EINSPJDS, Barasa W, Prabawa HI, et al. The Effect of Layer Thickness on Stress Ratio and Fatigue Service Life of Plain Concrete Slab Track Structure. IJIE. 2023;15(6):184-191. Accessed April 7, 2026. https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/14898