Gunawan, Iwan, Elizar, and Deddy Purnomo Retno. “Study of Road Surface Conditions Using Assessment Analysis of the Surface Distress Index (SDI) and Surface Distress Index (PCI) ”. Jurnal Ilmu Dan Rekayasa Sipil 1, no. 02 (November 20, 2024): 49–56. Accessed July 9, 2026. https://journal.uir.ac.id/index.php/jirs/article/view/19844.