References
- Adler, J. (1985). Youth on the road: Reflections on the history of tramping. Annals of Tourism Research, 12, 335–354.
- Gills, B. K. (Ed.). (2000). Globalization and the politics of resistance. London: Routledge.
- Torpey, J. (2000). The invention of the passport: Surveillance, citizenship and the state. Cambridge: Cambridge University Press.