1. Dunn WN. Public policy analysis: an introduction. Englewood Cliffs, NJ: Prentice-Hall, 1994.
2. Parsons W. Public policy: an introduction to the theory and practice of policy analysis. Northampton, MA: Elgar, 1995.
3. Clark T. The policy process: a practical guide for natural resource professionals. New Haven, CT: Yale University Press, 2002.
4. Majone G. Evidence, argument and persuasion in the policy process. New Haven, CT: Yale University Press, 1989.
5. National Research Council. Understanding risk: informing decisions in a democratic society. Washington, DC: National Academy, 1996.