KRAJEWSKA, Anna; KRAJEWSKI, Piotr. Taxation of the Self‑employed in Poland and other EU Countries – a Comparative Analysis. Comparative Economic Research. Central and Eastern Europe, [S. l.], v. 24, n. 2, p. 69–85, 2021. DOI: 10.18778/1508-2008.24.12. Disponível em: https://czasopisma.uni.lodz.pl/CER/article/view/9999. Acesso em: 7 dec. 2025.