1. IPCC. (2006). 2006 IPCC guidelines for national greenhouse gas inventories. Hayama: Institute for Global Environmental Strategies (IGES).
2. Brown, L. R. (2001). Eco-economy: Building an economy for the earth. London: Earth Policy Institute, Norton & Company Ltd.
3. Engler, R., Teplyakov, V., & Adams, J. (2014). An assessment of forest cover trends in South and North Korea, from 1980 to 2010. Environmental Management, 53(1), 194–201.
4. Bae, J. S. (2013). A preliminary review of REDD mechanism for rehabilitating forest degradation of North Korea. Journal of Korean Forest Society, 102(4), 491–498.
5. Kim, O. S., & Youn, Y. C. (2014). An identification of project sites for lowering carbon emissions and saving forests in DPR Korea. Journal of the Korean Geographical Society, 49(2), 264–274.