Hristova, Mariya, and Reneta Petrova. 2017. “Coinfection of Chicken Anaemia Virus, Mycoplasma Gallisepticum, Avian Metapneumovirus and Avian Reovirus in Fancy Chicken Breeds”. TRADITION AND MODERNITY IN VETERINARY MEDICINE 2 (2):17-22. https://www.scij-tmvm.com/index.php/pub/article/view/39.