1. Almond, G., und G. Powell. 1966. The Political System. A Developmental Approach. Boston: Little & Brown.
2. Almond, G., und S. Verba. 1963. The Civic Culture: Political Attitudes and Democracy in Five Nations. Princeton: Princeton University Press.
3. Almond, G., Powell, G., Dalton, R., Russell, J., und K. Strøm. 2010. Comparative Politics Today. A World View. 9. Aufl. New York: Longman.
4. Bertelsmann Stiftung. Hrsg. 2013. Bertelsmann Transformation Index 2014. Gütersloh: Verlag Bertelsmann Stiftung.
5. Brooker, P. 1995. Twentieth-century dictatorships: the ideological one-party states. Basingstoke: Macmillan.