Purba, Alexander, Popo Hartopo, and Ratna Widyawati. “PENGAWASAN TEKNIS REHABILITASI JALAN GUMAWANG - PETANGGAN”. Seminar Nasional Insinyur Profesional (SNIP) 4, no. 2 (December 30, 2024). Accessed June 9, 2026. https://snip.eng.unila.ac.id/ojs/index.php/snip/article/view/621.