1. Anand, P. B. (2002). Financing the provision of global public goods. UNU/WIDER Discussion Paper No. 2002/110. Retrieved January 20, 2023, from https://archive.unu.edu/hq/library/Collection/PDF_files/WIDER/WIDERdp2002.110.pdf
2. Batina, R. G., & Ihori, T. (2005). Public goods: Theories and evidences. Springer.
3. Barrett, S. (2007). Why Cooperate? The Incentive to Supply Global Public Goods. Oxford: Oxford University Press.
4. Betts, A. (2009). Protection by persuasion: International cooperation in the refugee regime. Cornell University Press.
5. Buchanan, J. M. (1965). An economic theory of clubs. Economica, 32, 1–14.