ANDREASIK, Jan. Ocena jakości życia w regionie. Regional Barometer. Analyses & Prognoses, [S. l.], n. 3, p. 35–39, 2003. DOI: 10.56583/br.1755. Disponível em: https://czaz.akademiazamojska.edu.pl/index.php/br/article/view/1755. Acesso em: 14 may. 2025.