Syukran, S., Azwinur, A., & Ferdiyansyah, F. (2020). The Effect of Holding Time on Stress Relief Annealing Process to Hardness of Carbon Steel SA.106 Grade B After Welding. SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin, 14(1), 46–51. https://doi.org/10.24853/sintek.14.1.46-51