NIEDZIELSKI, E. Extra Academic Activity of Students, Including Employment. Olsztyn Economic Journal, [S. l.], v. 11, n. 3, p. 241–248, 2016. DOI: 10.31648/oej.2930. Disponível em: https://czasopisma.uwm.edu.pl/index.php/oej/article/view/2930. Acesso em: 15 apr. 2024.