1. Abrahamsen, R., & Williams, M. C. (2010). Private Security in International Politics (Illustrated ed.). Cambridge University Press.
2. BBC (2017). Football Can Heal South Sudan, Says F.A. Boss. https://www.bbc.com/sport/football/40397371
3. Beck, P. J. (1999). Scoring for Britain: International Football Politics 1900-1939. Psychology Press.
4. The FIFA Scandal and the Distorted Influence of Small States
5. Duchacek, I. (1987). The Territorial Dimension of Politics: Within, among, and across Nations. Routledge.