KRAWCZYK, Michał. 500+ Benefit as an Element of Pro-Family and Demographic Policy of the Country. Management and Administration Journal, [S. l.], v. 47, n. 120, p. 57–62, 2019. DOI: 10.34739/zn.2019.47.07. Disponível em: https://czasopisma.uws.edu.pl/znadministracja/article/view/784. Acesso em: 5 oct. 2024.