Bioethanol Quality Improvement of Coffee Fruit Leather Luluk Edahwati, P. Dyah Suci, S. Nana Dyah, Tri Widjaya, Ali Altway, Domas Cahyo and Atika Nandini MATEC Web of Conferences, 58 (2016) 01004 Published online: 23 May 2016 DOI: 10.1051/matecconf/20165801004