Sutanto, A. et al. 2022. Tool life in Turning Processes: Effect of Lubricants with a small amount of Graphite as Cutting Fluid. METAL: Jurnal Sistem Mekanik dan Termal. 6, 2 (Oct. 2022), 69–76. DOI:https://doi.org/10.25077/metal.6.2.69-76.2022.