Kuchnir, G.V., LevytzkiyТ.R., G.P. Ryvak, L.V. Kurylas, O.M. Vilha, and G.Y. Fedor. “The Characteristics of Modern Methods for the Determination of Raw Protein in Feeds and in Plant Materials”. Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies. Series: Veterinary Sciences 19, no. 82 (November 6, 2017): 97-100. Accessed May 27, 2022. https://nvlvet.com.ua/index.php/journal/article/view/1344.