Sundari, S., Agustinus Waluyo, D., Kustiari, T., & Ahsin Kusuma Mawardi, A. (2025). Institutional Capacity of Farmer Groups in Development of Upstream Downstream Coffee Business in Jember Regency: Jember State Polytechnic. Jurnal Ilmiah Inovasi, 25(1), 27–32. https://doi.org/10.25047/jii.v25i1.5298