Prayuginingsih, Henik, Syamsul Hadi, Anisa Nurina Aulia, and Muhamad Imanuddin. 2026. “Characteristics of Farmer Group Administrators in Soybean (Glycine Max L.) Cultivation in Jember Regency”. Jurnal Penyuluhan 22 (01): 81-95. https://doi.org/10.25015/22202668296.