Mesin JR. Front Matter Jurnal Rekayasa Mesin Vol. 16 No. 1 April 2021. j.rekayasa.mesin. [Internet]. 2021 Apr. 27 [cited 2025 Jul. 1];16(1):i-vi. Available from: https://jurnal.polines.ac.id/index.php/rekayasa/article/view/2603