KAJIAN TEKNIS PENGGUNAAN MATERIAL SUPPORT PADA LAYERING FRONT PENAMBANGAN DI PT MANDALA KARYA PRIMA JOB SITE PT MANDIRI INTIPERKASA KALIMANTAN UTARA. PROCEEDINGS OF NATIONAL COLLOQUIUM RESEARCH AND COMMUNITY SERVICE, [S. l.], v. 9, p. 33–38, 2025. DOI: 10.33019/jn4qmy31. Disponível em: https://www.journal.ubb.ac.id/index.php/snppm/article/view/7324. Acesso em: 3 aug. 2026.