About this article
Published Online: Oct 06, 2020
Page range: 8 - 13
Received: Apr 18, 2020
Accepted: Jul 09, 2020
DOI: https://doi.org/10.2478/pjst-2020-0008
Keywords
© 2020 Igor Perechuda, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Perechuda, Igor
Jagiellonian University in Cracow, Faculty of Management and Social CommunicationCracow, Poland