1. Allport, G. (1954). The nature of prejudice. Cambridge, MA: Addison Wesley.
2. Ashmore, R. D. (1970). Prejudice: Causes and cures. In B. E. Colling (Ed.), Social psychology: Social influence, attitude change, group processes, and prejudice (pp. 245–339). Boston: Addison-Wesley.
3. BBC. (2015). Migrant crisis: Finland’s case against immigration. Retrieved from http://www.bbc.com/news/world-europe-34185297
4. BBC. (2018). Europe and nationalism: A country-by-country guide. Retrieved from https://www.bbc.com/news/world-europe-36130006
5. Berry, J. W. (1997). Immigration, acculturation, and adaptation. Applied Psychology: An International Review, 46, 5–68.