Peningkatan Nilai Nutrisi Pollard melalui Fermentasi Ragi Tempe sebagai Bahan Pakan Buatan Ikan Nila (Oreochromis niloticus) [ Increased Nutritional Value Pollard Through Yeast Fermentation Tempe as Artificial Feed Ingredients Tilapia (Oreochromis niloticus)] - Mahasri, Gunanti (Faculty of Fisheries and Marine Universitas Airlangga, 2015)