PODSTAWKA, M.; SUCHODOLSKI, B. Measurement and Assessment of the Level of Economic Development of the Counties of the Opolskie Voivodeship. Zeszyty Naukowe UPH seria Administracja i Zarządzanie, [S. l.], v. 47, n. 120, p. 25–32, 2019. DOI: 10.34739/zn.2019.47.03. Disponível em: https://czasopisma.uph.edu.pl/znadministracja/article/view/780. Acesso em: 2 may. 2024.