Junipitoyo, B., D. Said, and D. Dwiyanto. “Effect of Heat Treatment and 1,5% Magnesium Addition on Density, Hardness, and Tensile Strength of Al-Cu-Mg Alloys”. SAINSTECH NUSANTARA, vol. 1, no. 3, Aug. 2024, pp. 49-61, doi:10.71225/jstn.v1i3.61.