LITWIŃSKA-RĄCZKA, Katarzyna. Family (systemic) factors influencing life standards and health of working class. Kwartalnik Naukowy Fides et Ratio, [S. l.], v. 53, n. 1, p. 137–143, 2023. DOI: 10.34766/fetr.v53i1.1129. Disponível em: https://fidesetratio.com.pl/ojs/index.php/FetR/article/view/1129. Acesso em: 20 jan. 2026.