Gunawan, Sigit. “Pengaruh Perlakuan Panas Quenching Terhadap Ketangguhan Impak Pada Paduan Aluminium AC7A”. Jurnal Penelitian Inovatif 4, no. 2 (April 21, 2024): 483–490. Diakses Agustus 17, 2025. https://jurnal-id.com/index.php/jupin/article/view/345.