KIRONO, S.; SOFYAN, S.; RIVANI, R. A. PERENCANAAN MESIN PEMECAH BIJI KOPI MENTAH. SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin, [S. l.], v. 4, n. 1, 2010. Disponível em: https://jurnal.umj.ac.id/index.php/sintek/article/view/107. Acesso em: 30 may. 2025.