Samhuddin, and Al Ichlas Imran. “Analisa Pengaruh Penambahan Unsur Cu (Tembaga) Terhadap Sifat Mekanis Al – Si Melalui Proses Casting”. PISTON: Jurnal Teknologi 6, no. 2 (December 30, 2021): 6–10. Accessed July 13, 2025. https://piston-jt.uho.ac.id/index.php/journal/article/view/34.