Gunawan, Ikhsan, and Hamdi Sari Maryoni. “POTENSI PENGEMBANGAN EKONOMI DI KABUPATEN ROKAN HULU”. Journal Development 5, no. 1 (June 19, 2017): 12–27. Accessed June 3, 2025. https://jurnal.umjambi.ac.id/JD/article/view/41.