BIGOS, J. Variability (interchangeability) of forms of public administration’s activity. The Opole Studies in Administration and Law, [S. l.], v. 16, n. 1 (2), p. 45–54, 2019. DOI: 10.25167/osap.1127. Disponível em: https://czasopisma.uni.opole.pl/index.php/osap/article/view/1127. Acesso em: 21 nov. 2024.