Sinarep et al. 2024. 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. Energy, Materials and Product Design. 3, 2 (Nov. 2024), 207–212. DOI:https://doi.org/10.29303/empd.v3i2.5407.