1. Marine protected areas and ocean conservation;Agardy,1997
2. Marine protected areas: tools for sustaining ocean ecosystems,2001
3. Foundations of environmental ethics;Hargrove,1989
4. Miller ML, Gale RP, Brown PJ, editors. Natural resource management systems. Social Science in Natural Resource Management Systems. Boulder, CO: Westview Press; 1986. p. 3–32
5. Barangay: the basic local government unit;Aralar,1989