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2. Developmental Process of Forest Policy in Korea and Present Status of Forest Desolation in North Korea;Choi I.-H.;Journal of Forest Science,2007
3. Doornbos, M. R., A. Saith, and B. White. 2000. Forests: Nature, People and Power. London, UK: Wiley Blackwell.
4. FAO (Food and Agriculture Organization) and DFID (Department for International Development). 2001. “How Forests Can Reduce Poverty.” https://www.fao.org/3/Y2172E/Y2172E00.htm.
5. FAO. 2006. “Global Forest Resources Assessment 2005.” https://www.fao.org/forestry/8259-0d9fef67f5074fb93dd06521daee4ec48.pdf.