Rekayasa Mesin, J. 2025. Back Matter Jurnal Rekayasa Mesin Vol. 20 No. 2 August 2025. Jurnal Rekayasa Mesin. 20, 2 (Aug. 2025), App.1–4 PDF. DOI:https://doi.org/10.32497/jrm.v20i2.6934.