Ridwan, Firman, and Zuliantoni Zuliantoni. “The Effect of Aluminum Addition Ratio As Filling Material of PLA Toward PLA Filament Electrical Conductivity on 3D Printing Applications”. METAL: Jurnal Sistem Mekanik Dan Termal, vol. 8, no. 1, Oct. 2024, pp. 1-5, doi:10.25077/metal.8.1.1-5.2024.