HAUK, M. Proactive Performance of Employees in Polish Higher Education Institutions: Determinants and Implications. Journal for Perspectives of Economic Political and Social Integration, [S. l.], v. 32, n. 1, p. 33–78, 2026. DOI: 10.18290/pepsi-2026-0002. Disponível em: https://czasopisma.tnkul.pl/index.php/jpepsi/article/view/4382. Acesso em: 8 jul. 2026.