“ANALISA PERBANDINGAN KOMPOSISI UNSUR Mg TERHADAP PEMBULATAN GRAFIT DAN KEKERASAN PRODUK PRESSURE PLATE ”. Journal Foundry 5, no. 2 (July 14, 2022): 38–45. Accessed August 18, 2026. https://e-journal.polmanceper.ac.id/index.php/foundry/article/view/47.