Petko , Mariya, Vitaliy Fedorovych, Yelysaveta Fedorovych, and Nataliya Mazur. “Egg Production and Honey Productivity of Different Linear Bees Cross of Carpathian Breed”. Bulletin of Sumy National Agrarian University. The series: Livestock, no. 4(43) (December 25, 2020): 71-75. Accessed April 20, 2024. https://www.snaubulletin.com.ua/index.php/ls/article/view/259.