Voitenko , Svitlana, and Olena Sydorenko. “Ukrainian White-Headed Breed for Purebreed Breeding and Crossing”. Bulletin of Sumy National Agrarian University. The series: Livestock, no. 1(44) (March 29, 2021): 55-62. Accessed November 25, 2024. https://snaubulletin.com.ua/index.php/ls/article/view/296.