“Dampak Program Sekolah Lapang Pengelolaan Tanaman Terpadu Terhadap Efisiensi Teknis Usahatani Kedelai Di Kabupaten Jember”. Jurnal Agribisnis Indonesia 2, no. 2 (March 22, 2017): 141–158. Accessed January 16, 2026. https://journal.ipb.ac.id/jagbi/article/view/15681.