Amandasari, Melissa, Rita Nurmalina, and Amzul Rifin. “EFISIENSI TEKNIS USAHATANI JAGUNG MANIS DI DESA GUNUNG MALANG KECAMATAN TENJOLAYA KABUPATEN BOGOR: PENDEKATAN DATA ENVELOPMENT ANALYSIS”. Forum Agribisnis : Agribusiness Forum 4, no. 2 (September 1, 2014): 121-138. Accessed September 19, 2020. https://journal.ipb.ac.id/index.php/fagb/article/view/8857.