↑ abHloušek, Vít; Kopeček, Lubomír (2010), Origin, Ideology and Transformation of Political Parties: East-Central and Western Europe Compared, Ashgate, p. 196
↑ abcNodsieck, Wolfram, "Poland", Parties and Elections in Europe, retrieved 28 Mairch 2012
↑Szczerbiak, Aleks (2012), Poland Within the European Union: New awkward partner or new heart of Europe?, Routledge, pp. 1, 13
↑Porter-Szűcs, Brian (2011), Faith and Fatherland: Catholicism, Modernity, and Poland, Oxford University Press, p. 201
↑Minkenberg, Michael (2007), "Between Tradition and Transition: the Central European Radical Right and the New European Order", Europe for the Europeans: The Foreign and Security Policy of the Populist Radical Right, Ashgate, p. 261