Ostrowska, Aleksandra. 2021. “The Impact of the COVID-19 Pandemic on the Profitability of the Banking Sector in Poland”. Krakow Review of Economics and Management Zeszyty Naukowe Uniwersytetu Ekonomicznego W Krakowie, no. 3(993) (December): 121-35. https://doi.org/10.15678/ZNUEK.2021.0993.0307.