1. Adamiak, P. (2013). Zaangażowanie społeczne Polek i Polaków – raport z badania 2013. Stowarzyszenie Klon/Jawor. Available at:
http://bibliotekawolontariatu.pl/wp-content/uploads/RAPORT_klon_zaangazowanie_spoleczne_2013.pdf
. Last accessed 15 June 2019.
2. Baker, J., Lynch, K., Cantillon, S., & Walsh, J. (2009). Equality: From Theory to Action. Basingstoke: Palgrave Macmillan.
3. Bartolini, S. (2005). Restructuring Europe: Centre Formation, System Building, and Political Structuring Between the Nation State and the European Union. Oxford: Oxford University Press.
4. Bentley, A. (1908). The Process of Government. Chicago: University of Chicago Press.
5. Berger, P. L., & Neuhaus, R. (1977). To Empower People: The Role of Mediating Structures in Public Policy. Washington, DC: American Enterprise Institute.