Authors
Sylwia Stachera-Włodarczyk
sylwia.stachera-wlodarczyk@wz.pcz.pl
Czestochowa University of Technology, Poland
sylwia.stachera-wlodarczyk@wz.pcz.pl
© 2019 Sylwia Stachera-Włodarczyk, published by Quality and Production Managers Association
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.