R. Ramadhan, E. Nursanto, and N. A. Amri, “ KAJIAN TEKNIS LOSSES MATERIAL ORE NIKEL UNTUK MENGHITUNG OPTIMALISASI SHIPMENT RATIO PADA PENAMBANGAN PT. BUKIT MAKMUR ISTINDO NIKELTAMA”, Journal Technology of Civil, Electrical, Mechanical, Geology, Mining, and Urban Design, vol. 7, no. 2, pp. 71-80, Nov. 2022.