- Anonymous, 2013. The program of optimization monitoring, preservation, logging and management of country forests. Print of Republic of Islamic Iran Newspaper. No: 69(20059), 3p (In Persian).
- Asghariyan, M., Shacheraghi, T., Nasir Ahmadi, K. and Oladi, J., 2012. Recognition of critera and index of nature reserve management in forest parks north of Iran to using of Delphi method. Journal of Natural Ecosystem Iran, 2(4): 93-103 (In Persian).
- Asgharpour, M.J., 2003. A group decision and game theory with attitude research in operations. Tehran University, 225 p (In Persian).
- Bender, M., 2008. Development of criteria & indicators for evaluating forest-based ecotourism destination: A Delphi study. PhD thesis, West Virginia University, Morgantown, 151 p.
- CIFOR, 1999. The CIFOR Criteria and Indicators Generic Template. Toolbox series, No. 2: 32 p.
- Cuhls, K., 2001. Delphi Method. Fraunhofer Institute for Systems and Innovation Research, 15 p (In German).
- Golkaryan, H., 2009. Identification of criteria and indicators for sustainable development of ecotourism in Golestan national park using Delphi and AHP. Master thesis, Environmental Sciences University of Ahwaz, 207 p (In Persian).
- Hai, L.T., Hai, P.H., Khoa, N.T. and Hens, L., 2009. Indicators for sustainable development in the Quang Tri Province, Vietnam. Social Indicator Research, 121p.
- IUCN, 1994. Guidelines for protected areas management categories, IUCN, Cambridge, UK and Gland, Switzerland, 261p.
- Jebel Ameli, M.S., Abedi, M. and Ghavamifar, K., 2004. Spatial Value Engineering in Management Project, Tehran: Publication of Management and Planning Organization Iran. 324 p (In Persian).
- Keeney, S., Hasson, F. and Mckenna, H.P., 2001. A critical review of Delphi technique as a research methodology for nursing. International Journal of Nursing Studies, 38(2): 195-200.
- Majnonian, H., 2000. Information, Plan, Conservation of Park and Area. Conservation Environment office, Tehran. 742 p (In Persian).
- Mitchell, E., 2010. Criteria and Indicators of Sustainable Rangeland Management. Laramie, WY: University of Wyoming Extension Publication, 56: 227p.
- Munroe, DK., Nagendra, H. and Southworth, J., 2007. Monitoring landscape fragmentation in an inaccessible mountain area: Celaque National Park, Western Honduras. Journal of Landscape and Urban Planning, 83(2): 154-167.
- Munca, D.P., Varnhagen, S., Brett-McLean, P., Allan, G.M., Szafran, O. and Ausford, A., 2007. Rewards and challenges of family practice: web- based survey using the Delphi method. Can Fam Physician, 53(2): 278-86.
- Powell, C., 2003.The Delphi technique: Myths and realities. Methodological Issues in Nursing Research. Journal of Advanced Nursing, 41(4): 376-382.
- Skulmoski, G.J., Hartman, F. and Krahn, J., 2007. The Delphi method for graduate research. Journal of Information Technology Education, 6: 123–132.
- Timko, J.A. and Innes, J.L., 2009. Evaluating ecological integrity in national parks: case studies from Canada and South Africa. Journal of Biological Conservation, 142(3): 676–688.
- Yianna, F., Poulicos, P., 2000. Sustainable Development Indicators: An Overview. Institute of Applied and Computational Mathematics (IACM), Regional Analysis Division, 16p.