“QUANTIFYING THE SURFACE ROUGHNESS EVALUATION OF RAILWAY BALLAST GRAIN UNDER ROTATING DRUM ABRASION”, INTERNATIONAL JOURNAL OF GEOMATE, vol. 26, no. 113, pp. 107–114, Jan. 2024, Accessed: Jun. 25, 2026. [Online]. Available: https://geomatejournal.com/geomate/article/view/4391