Yuni K, Kusnul Ciptanila, Nurul Hidayat, and Anita Musfiroh. 2025. “Closed-Loop Sytem in Sarangan Magetan Dairy Farm: Designing a Business Model Canvas for Resource Optimization”. Eqien - Jurnal Ekonomi Dan Bisnis 14 (2):468-81. https://doi.org/10.34308/eqien.v14i2.1996.