INDRA SUKMANA, GALIH, and AKHMAD HAFIZH AINUR RASYID. 2019. “REDESAIN MESIN GRINDDING DAN POLISH SEMI OTOMATIS”. Jurnal Rekayasa Mesin 5 (1). https://ejournal.unesa.ac.id/index.php/jurnal-rekayasa-mesin/article/view/26551.