OPERATIONAL RISK MANAGEMENT IN THE MINING TRANSITION: A CASE STUDY OF PT FREEPORT INDONESIA’S GRASBERG BLOCK CAVE (GBC) IMPLEMENTATION. SIGARUDA JOURNAL: Jurnal Ilmiah Bidang Sosial, Ekonomi, Budaya, Teknologi dan Pendidikan, [S. l.], v. 1, n. 2, p. 140–145, 2025. Disponível em: https://ejournal.sociovisionary.com/index.php/garudajournal/article/view/99. Acesso em: 24 oct. 2026.