Langi, Jois Limbong, et al. “REKAYASA MESIN PENGUPAS KULIT BUAH KOPI JENIS ROBUSTA MODEL TEP-JLL 2015 DI KABUPATEN TANA TORAJA”. Jurnal Teknologi Pertanian (Agricultural Technology Journal), vol. 11, no. 1, June 2020, doi:10.35791/jteta.v11i1.29983.