“Feasibility Analysis of Koi Fish (Cyprinus carpio) Hatchery Business at Batu Kumbung Fish Seed Center (BBI), Lingsar Subdistrict” (2023) Jurnal Media Akuakultur Indonesia, 3(2), hlm. 58–66. doi:10.29303/mediaakuakultur.v3i2.2638.