PERHITUNGAN VOLUME TIMBUNAN BATUBARA MENGGUNAKAN UNMANNED AERIAL VEHICLE (UAV) DI PT. MITRA BARITO LUMBUNG ENERGI SITE PT. KALIMANTAN PRIMA NUSANTARA (KPN). SNPPM [Internet]. 2023 Dec. 27 [cited 2026 Apr. 19];7:79-83. Available from: https://www.journal.ubb.ac.id/index.php/snppm/article/view/4834