“Optimasi Konsumsi Fuel Dump Truck Terhadap Pengaruh Grade Jalan Pada Aktivitas Penambangan Pada PT. Pamapersada Nusantara Kecamatan Sangatta Utara Kabupaten Kutai Timur: Optimization Of Dump Truck Fuel Consumption In The Effect Of Road Grade In Mining Activities In PT Pamapersada Nusantara Subdistrict Sangatta Utara Distric Kutai Timur”, mineral, vol. 7, no. 2, pp. 8–13, Nov. 2022, doi: 10.33019/mineral.v7i2.3338.