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: Publikasi Ilmu Keteknikan Industri, Teknik Elektro dan Informatika, [S. l.], v. 4, n. 2, p. 72–83, 2026. DOI: 10.61132/jupiter.v4i2.1351. Disponível em: https://journal.aritekin.or.id/index.php/Jupiter/article/view/1351. Acesso em: 23 jun. 2026.