OWCZARCZYK, ANNA; LAZUREK, JOANNA. E-SERVICES IN PUBLIC ADMINISTRATION ON THE BASIS OF THE POLISH SOCIAL INSURANCE INSTITUTION (ZUS). Management and Administration Journal, [S. l.], v. 55, n. 128, p. 19–28, 2021. DOI: 10.34739/zn.2021.55.03. Disponível em: https://czasopisma.uws.edu.pl/znadministracja/article/view/2353. Acesso em: 5 oct. 2024.