LEWKOWICZ-GRZEGORCZYK, Katarzyna. Family-Friendly Solutions in Personal Income Tax in Poland in the Context of Modern Demographic Trend. Journal of Finance and Financial Law, [S. l.], v. 1, n. 41, p. 117–131, 2024. DOI: 10.18778/2391-6478.1.41.07. Disponível em: https://czasopisma.uni.lodz.pl/fipf/article/view/22770. Acesso em: 7 dec. 2025.