Stepanenko , V., O. Lavryniuk, V. Borshchenko, M. Kryvyi, V. Mamchenko, and L. Khmelnychyi. “Evaluation of Efficiency of Training Methods for Training Service Dogs”. Bulletin of Sumy National Agrarian University. The Series: Livestock, no. 1(44), Mar. 2021, pp. 63-68, doi:10.32845/bsnau.lvst.2021.1.9.