Kelik, V., Hengky, H. and Kurniawan, D. (2016) “PERANCANGAN MESIN PENGUPAS DAN PEMISAH KULIT BUAH KOPI KERING”, Jurnal Teknik Mesin (Journal Of Mechanical Engineering). Jakarta, Indonesia, 5(2), pp. 64–70. doi: 10.22441/jtm.v5i2.711.