Pratama, Fikri Wahyu, Eddy Sumarno Siradj, and Okky Helja Octora Syahida Rahman. 2022. “Failure Analysis on Tube Arm Cylinder Hydraulic Excavator”. Jurnal Pendidikan Teknologi Kejuruan 5 (4), 101-4. https://doi.org/10.24036/jptk.v5i4.29423.