Manurung, V. A. T., and R. Fatulloh. “MODIFIKASI SISTEM ELEKTRIK SOLENOID BRAKE COOLING VALVE KOMATSU DUMP TRUCK HD 785-5”. Technologic, vol. 3, no. 2, Dec. 2012, https://technologic.polytechnic.astra.ac.id/index.php/firstjournal/article/view/24.