1. Brettell, A. (2000). Environmental non-governmental organizations in the People’s Republic of China: Innocents in a co-opted environmental movement? Journal of Pacific Asia, 6, 27–56.
2. Buechler, S. M. (2007). The strange career of strain and breakdown theories of collective action. In D. S. Snow, S. A. Soule, & H. Kriesi (Eds.), Blackwell companion to social movements (pp. 47–66). Oxford: Blackwell.
3. CEF (China Environmental Federation). (2006). Blue book on the development status of China environmental NGOs. Beijing: China Environmental Federation.
4. CEJA (China Environmental Journalist Association). (2001). Public environmental awareness survey. Beijing: China Environmental Journalist Association.
5. CEPF (China Environmental Protection Foundation). (1995). Public environmental awareness survey. Beijing: China Environmental Protection Foundation.