Analisis Nilai International Roughness Index (IRI) untuk Pemrograman Preservasi Jalan Nasional di Sulawesi Utara. Journal of Engineer Professional, [S. l.], v. 1, n. 1, p. 29–32, 2025. Disponível em: https://ejournal.unsrat.ac.id/v3/index.php/jep/article/view/61354. Acesso em: 14 oct. 2026.