Authors
Witelon State University of Applied Sciences in Legnica, Poland
Hien Thuc Trinh
University of Economics and Law, Vietnam National University Ho Chi Minh City
© 2021 Edyta Rutkowska-Tomaszewska, Marta Stanisławska, Hien Thuc Trinh, published by University of Białystok
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.