Titarenko О., P. Zerko, O. Kyrychko, and M. Petrenko. “Spreading of Bovine Leukemia Virus Among Cattle in the Poltava Region”. Scientific Progress & Innovations, no. 4 (December 30, 2022): 230–238. Accessed December 15, 2025. https://journals.pdaa.edu.ua/visnyk/article/view/1725.