Kowalska, Agnieszka. “Differences in the Level and Structure of Consumption of Polish Households from 2010-2019”. Olsztyn Economic Journal 15, no. 4 (December 31, 2020): 313–325. Accessed November 22, 2024. https://czasopisma.uwm.edu.pl/index.php/oej/article/view/6854.