KAJIAN TEKNIS PENGGUNAAN MATERIAL SUPPORT PADA LAYERING FRONT PENAMBANGAN DI PT MANDALA KARYA PRIMA JOB SITE PT MANDIRI INTIPERKASA KALIMANTAN UTARA. SNPPM [Internet]. 2025 Dec. 29 [cited 2026 Apr. 10];9:33-8. Available from: https://journal.ubb.ac.id/index.php/snppm/article/view/7324