C. . Naatonis, F. M. . Telupere, and U. R. . Lole, “Kinerja Ekonomi Pemberian Pakan Rendah Protein pada Ayam Broiler Periode Finisher Dengan dan Tanpa Suplementasi Enzim Protease: Economic Value of Low Protein Feed Costs in Finisher Period Broiler With and Without Protease Enzyme Suplementation”, JPLK, vol. 5, no. 1, pp. 105–112, Mar. 2023.