Back Matter Jurnal Rekayasa Mesin Vol. 15 No. 3 Desember 2020 Authors Jurnal Rekayasa Mesin DOI: https://doi.org/10.32497/jrm.v15i3.2188 Downloads PDF Published 2020-12-28 Issue Vol. 15 No. 3 (2020): Volume 15, Nomor 3, Desember 2020 Section Back Matter