Assessing the Economic Performance of a Soybean Seed Management Unit for Sustainable Seed Production in Tebo Regency, Indonesia Evo Afrianto, Muhamad Rifki Hanafi, Isyaturriyadhah Isyaturriyadhah International Journal of Agricultural Social Economics and Rural Development (Ijaserd) Vol. 6 No. 1 2026 DOI 10.37149/ijaserd.v6i1.2902