KWIATKOWSKA, J. CROSS-SELLING AND UP-SELLING IN A BANK. Copernican Journal of Finance & Accounting, [S. l.], v. 7, n. 4, p. 59–70, 2019. DOI: 10.12775/CJFA.2018.020. Disponível em: https://apcz.umk.pl/CJFA/article/view/CJFA.2018.020. Acesso em: 27 apr. 2024.