AGUSTIAN, E., Somawardi, & Sugianto. (2021). Analysis of the Effect of Cooling Media and the Combination of Cooling Holding Time on the Hardness Value of AISI-1045 Steel in the Quenching Process. Manutech : Jurnal Teknologi Manufaktur, 13(01), 25-32. https://doi.org/10.33504/manutech.v13i01.169