Tangel D, Tangkuman S, Luntungan H. APLIKASI SPREADSHEET PADA PERANCANGAN RODA GIGI LURUS. JPTMU [Internet]. 2016 Oct. 25 [cited 2024 Dec. 22];5(2). Available from: https://ejournal.unsrat.ac.id/v3/index.php/poros/article/view/13786