Yuni K, Kusnul Ciptanila, Nurul Hidayat, and Anita Musfiroh. “Closed-Loop Sytem in Sarangan Magetan Dairy Farm: Designing a Business Model Canvas for Resource Optimization”. Eqien - Jurnal Ekonomi dan Bisnis 14, no. 2 (June 16, 2025): 468–481. Accessed July 18, 2025. https://stiemuttaqien.ac.id/ojs/index.php/OJS/article/view/1996.