Download the full article as a PDF file.
© 2019 Anna Ren-Kurc, Magdalena Roszak, Iwona Mokwa-Tarnowska, Mirosława Kołowska-Gawiejnowicz, Jan Zych, Wojciech Kowalewski, published by University of Białystok, Department of Pedagogy and Psychology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.