KISIEL, R.; WIŚNIEWSKA, D. The Service Sector in Poland as the Affecting Factor to the Growth in the Economy. Olsztyn Economic Journal, [S. l.], v. 11, n. 3, p. 227–240, 2016. DOI: 10.31648/oej.2929. Disponível em: https://czasopisma.uwm.edu.pl/index.php/oej/article/view/2929. Acesso em: 24 apr. 2024.