Hristova, Pavlina, and Violeta Alexandrova. “AMPLITUDE AND FREQUENCY CHARACTERISTICS OF THE VOCALIZATIONS OF CANIDAE FAMILY, GENUS CANIS”. TRADITION AND MODERNITY IN VETERINARY MEDICINE, vol. 8, no. 1, June 2023, pp. 65-70, https://scij-tmvm.com/index.php/pub/article/view/218.