GRZEGORCZYK, Wojciech. THE PROBLEMS OF MARKETING PERFORMANCE MEASUREMENT. The Scientific Journal European Policies, Finance and Marketing, [S. l.], n. 15(64), p. 68–74, 2016. DOI: 10.22630/PEFIM.2016.15.64.6. Disponível em: https://pefim.sggw.edu.pl/article/view/1218. Acesso em: 14 nov. 2026.