1.
Hariningsih H, Sumpena S, Sukarjo H. The effectivity of used-oil as quenching medium of 42-CrMo4 steel for automotive materials. ARSTech [Internet]. 2020 Jun. 10 [cited 2024 Nov. 21];1(1):28-34. Available from: https://journals2.ums.ac.id/arstech/article/view/11