Ciuman, Krystyna. “Tax Relief and Tax Preferences in Income Tax in Poland”. Krakow Review of Economics and Management/Zeszyty Naukowe Uniwersytetu Ekonomicznego w Krakowie, no. 2(974) (July 24, 2018): 167–183. Accessed December 4, 2024. https://krem.uek.krakow.pl/index.php/krem/article/view/1587.