About the Authors

Bosovskyi Mykola

Bohdan Khmelnytskyy National University of Cherkasy, Cherkasy, Ukraine

Bochko Oksana

Bohdan Khmelnytskyy National University of Cherkasy, Cherkasy, Ukraine

Tretyak Mykola

Bohdan Khmelnytskyy National University of Cherkasy, Cherkasy, Ukraine

Corresponding Author

Email: ok.volovik@gmail.com