1. Becker, C. D., & Ostrom, E. (1995). Human ecology and resource sustainability: The importance of institutional diversity. Annual Review of Ecology and Systematics, 26, 113–133.
2. Becker, C. D., Abwoli, Y. B., & William, G. S. (1995). Early detection of tropical forest degradation: An IFRI pilot study in Uganda. Environmental Conservation, 22, 31–38.
3. Belmont, J., et al. (2000). A return visit to the May Creek Community. IFRI research program report. W00I-28.
4. Colfer, C. J. P. (2005). The complex forest: Communities, uncertainty and adaptive collaborative management, Resources for the Future, Washington DC and Centre for International Forest Management. Indonesia: Bogor.
5. Erjen, K., Thomas, L., et al. (2001). Revisiting the Elf Lore family and the Lothlorien Forest. IFRI research program report. W011-28.