Authors
Marlena Smuda-Kocoń
marlena.smuda-kocon@ue.katowice.pl
University of Economics in Katowice, College of Management, Poland
marlena.smuda-kocon@ue.katowice.pl
© 2019 Marlena Smuda-Kocoń, published by Warsaw School of Economics
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.