Authors
Magdalena Jaworzynska
magdalena.jaworzynska@umcs.lublin.pl
Maria Curie-Sklodowska University in Lublin, Faculty of Economics,, Lublin, Poland
magdalena.jaworzynska@umcs.lublin.pl
© 2017 Magdalena Jaworzynska, published by Bialystok University of Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.