Syakuura, A., Sofyan, B. T., & Ringer, S. P. (2012). SIFAT MEKANIS DAN PENGERASAN PRESIPITASI PADUAN Al-Zn-Mg DENGAN VARIASI KANDUNGAN Cu SELAMA AGEING PADA TEMPERATUR 120 °C [Mechanical Properties and Precipitation Hardening of Al-Zn-Mg Alloys With Variation in Cu Content]. Jurnal Metalurgi, 27(2), 85–94. https://doi.org/10.14203/metalurgi.v27i2.143