Muhammad Djody Satriani. Effectiveness of Mineral Downstreaming Policy in Encouraging Regional Economic Transformation : A Case Study of RKEF And HPAL Integration In Obi Island, South Halmahera. Jupiter [Internet]. 2026 Mar. 31 [cited 2026 Jun. 23];4(2):72-83. Available from: https://journal.aritekin.or.id/index.php/Jupiter/article/view/1351