Ramadhan, W. M. .; Nurrohkayati, A. S. . Maintenance Service Cost Emphasize Dump Truck Volvo FMX 440 at PT Iwaco Jaya Abadi Site Kideco: Penekanan Biaya Pemeliharaan Dump Truk Volvo FMX 440 Di PT Iwaco Jaya Abadi Site Kideco . PELS 2022, 3.