Sugiyanto, Sugiyanto. “Tata Kelola Koperasi Dengan Pendekatan Stewardship Atau Agency Theory”. J-Coop : Journal of Co-operative 1, no. 2 (August 7, 2025): 189–198. Accessed June 12, 2026. https://ojs.ikopin.ac.id/jcoop/article/view/22.