Трончук, І. С., and Т. М. Рак. 2012. “Annual Needs in Conversion Power and Digestible a Protein Cows With Yield of Milk from 5000 to 9000 Kg”. Scientific Progress & Innovations, no. 2 (June):100-104. https://doi.org/10.31210/visnyk2012.02.20.