Wibisono, A. T., Ramadhani, M. . and Rochiem, R. . (2025) “Effect of Holding Time and Cooling Medium on Microstructure and Hardness of AISI 8655 in Hardening Process”, IPTEK The Journal of Engineering, 4(3), pp. 13–16. doi: 10.12962/joe.v4i3.4280.