HAFFER, R. TOWARDS BUSINESS EXCELLENCE. THE CASE OF POLAND. Journal of Positive Management, [S. l.], v. 1, n. 1, p. 97–109, 2010. DOI: 10.12775/JPM.2010.008. Disponível em: https://apcz.umk.pl/JPM/article/view/JPM.2010.008. Acesso em: 18 jul. 2024.