2024. Analysis of Mechanical Properties and Microstructure of Aluminum and Copper Sheet Welding Using Friction Stir Spot Welding Method. Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa & Inovasi. 6, 1 (Jan. 2024), 89–102. DOI:https://doi.org/10.35814/asiimetrik.v6i1.5552.