2019 International Journal of Management and Economics, T. 55, z. 1, s. 13-24
https://content.sciendo.com/view/journals/ijme/55/1/article-p13.xml
2019 International Journal of Management and Economics, T. 55, z. 1, s. 13-24
https://content.sciendo.com/view/journals/ijme/55/1/article-p13.xml