DUDA, M. Problemy metodologiczne w badaniach nad jakością życia. Journal of Education, Technology and Computer Science, [S. l.], v. 21, n. 3, p. 17–22, 2017. DOI: 10.15584/eti.2017.3.1. Disponível em: https://journals.ur.edu.pl/jetacomps/article/view/6045. Acesso em: 3 lis. 2024.