Ruman, Natalia Maria, and Zdenek Mruzek. “Chellanges for Youth Resulting from the Internet Use a Reflection on the Example of Two Secondary Schools: in Pszczyna and in Český Těšín”. International Journal of Research in E-learning (December 16, 2024): 1–27. Accessed July 2, 2025. https://trrest.vot.pl/ojsus/index.php/IJREL/article/view/17587.