Analisis Manajemen Operasional Alat Pemecah Batu Pada Unit Pengolahan Batu Andesit di PT Calvary Abadi Klaten Jawa Tengah. PROMINE, [S. l.], v. 13, n. 1, p. 20–27, 2025. DOI: 10.33019/q3815p03. Disponível em: https://www.journal.ubb.ac.id/index.php/promine/article/view/2845. Acesso em: 15 apr. 2026.