Yamin, Muhammad. “Rancang Bangun Alat Pengupas Kelapa Muda Pada Skala Entrepreneurship”. Buletin Loupe 13, no. 01 (June 6, 2020): 7. Accessed May 20, 2024. https://e-journal.politanisamarinda.ac.id/index.php/jurnalloupe/article/view/84.