Studi AsosiasiAntara Masa Kosong (Days Open) Terhadap Produksi Susu dan Kerugian Ekonomi Pada Peternakan Sapi Perah Di Kabupaten Garut (Association Study Of Days Open On Milk Production And Its Implication on Economic Losses of Dairy Cattle in Garut Regen - Setiawan, Rangga (Universitas Padjadjaran, 2015)