Malgorzata Grzywińska-Rąpca Малгожата. “Consumer Purchasing Behaviour During the COVID-19 Epidemic: A Case Study for Poland”. Economy of Regions 18, no. 2 (June 30, 2022): 595–608. Accessed March 28, 2024. https://economyofregions.org/ojs/index.php/er/article/view/221.