PEKEY, Simon; ACHSANI, Noer Azam; SANTOSO, Moch. Hadi. Faktor-faktor Penentu Harga Tembaga di Pasar Internasional Terhadap PT. Freeport Indonesia. Jurnal Aplikasi Bisnis dan Manajemen, [S. l.], v. 8, n. 2, p. 654, 2022. DOI: 10.17358/jabm.8.2.654. Disponível em: https://journal.ipb.ac.id/jabm/article/view/38354. Acesso em: 25 dec. 2025.