1. Arts, B. (1998). The political influence of global NGOs: Case studies on the climate and biodiversity conventions. Utrecht: International Books.
2. Avant, D., Finnemore, M., & Sell, S. (Eds.). (2010). Who governs the globe? (Cambridge Studies in International Relations). Cambridge: Cambridge University Press.
3. Barnett, M., & Sikkink, K. (2008). From international relations to global society. In C. Reus-Smit & D. Snidal (Eds.), The Oxford handbook of international relations (pp. 62–83). Oxford: Oxford University Press.
4. Berry, J. M. (2002). Validity and reliability issues in elite interviewing. PS: Political Science and Politics, 35(4), 679–682.
5. Betsill, M. (2008). Environmental NGOs and the Kyoto protocol negotiations: 1995 to 1997. In M. Betsill & E. Corell (Eds.), NGO diplomacy: The influence of nongovernmental organizations in international environmental negotiations (pp. 43–66). Cambridge: The MIT Press.