Pilch, Irena, and Lidia Baran. “Personal Values, Perceptions of Unfairness in Social Exchange and Happiness Among Young Voters and Non-Voters in Poland”. Political Preferences, no. 4 (January 1, 2013). Accessed April 25, 2024. https://www.journals.us.edu.pl/index.php/PP/article/view/4186.