Subarkah, Rahmat, Sintia Pramudita, and Gun Gun Ramdlan Gunadi. “Pengujian Hydraulic Cylinder Pada Simulator Arm Excavator”. Jurnal Mekanik Terapan 1, no. 2 (November 25, 2020): 116–122. Accessed October 19, 2021. https://jurnal.pnj.ac.id/index.php/jmt/article/view/3358.