1. The world health report;World Health Organization,2011
2. The world health report – health systems financing: the path to universal coverage;World Health Organization,2011
3. Protecting public health and the environment: implementing the precautionary principle;Raffensperger,1999
4. A new progressive agenda for public health and the environment: a project of the center for progressive regulation;Schroeder,2005
5. CASH: better quality of public toilet environment for developing countries;Siu;Environ Monitor,2006