Yurianto, Y., S. Sulardjaka, S. A. Widyanto, and P. Yanuar. “Comparison of the Structure and Properties Between Single quench+temper and Double quench+temper of medium­carbon and carbon­manganese Steel”. Eastern-European Journal of Enterprise Technologies, vol. 5, no. 12 (107), Oct. 2020, pp. 15-22, doi:10.15587/1729-4061.2020.214223.