“PENGARUH PENAMBAHAN UNSUR TEMBAGA PADA PENGECORAN TEKAN BLOK SILINDER BEKAS TERHADAP NILAI IMPAK DAN KEAUSAN : EFFECT OF ADDITION OF COPPER ELEMENTS IN THE COMPRESSION CASTING OF USED CYLINDER BLOCKS ON IMPACT VALUE AND WEAR” (2024) Energy, Materials and Product Design, 3(2), hlm. 207–212. Tersedia pada: https://journal.unram.ac.id/index.php/empd/article/view/5407 (Diakses: 8 Oktober 2025).