M. Marody, und S. Mandes. Religion, Politics, and Values in Poland: Continuity and Change Since 1989, Palgrave Macmillan US, New York, http://dx.doi.org/10.1057/978-1-137-43751-8_11. (EVS).(2017)
G. Ariely. International Journal of Psychology, 52 (S1):
87-96(2017)First published online: July 18, 2016, http://dx.doi.org/10.1002/ijop.12364. (EVS) (ISSP).
S. Kim. International Review of Administrative Sciences, 83 (1):
23-40(2017)First published online: December 29, 2015, https://doi.org/10.1177/0020852315596214. (ISSP).