Lubis, Edo Rizki Pradana, Gina Cynthia Raphita Hasibuan, and M. Ridwan Anas. 2025. “Analysis of Secondary Local Road Conditions Using the Surface Distress Index (SDI) Method in Medan Amplas District”. ASTONJADRO 14 (1):201-10. https://doi.org/10.32832/astonjadro.v14i1.16884.