1. Badenoch, N. 1999.Watershed Management and Upland Development in Lao PDR: a Synthesis of Policy, 1–11. World Bank Research Institute.
2. Beheshtifar, S. and Mesgari, S. 2006. “Comparison of Boolean, Index Overlay and Fuzzy logic Methods for Data Integration in Power‐Plant Sitting”. http://www.gisdeveopment.net/application/utility/power/ma06–80.htm
3. Production functions: a useful tool for forest management
4. Chanthilath, K. and Xayabouth, K. Outline of Forest policy development in LAO PDR. IGES International workshop. Forest function and their categorizes. http://www.lesoprojekt.sk/english/lesop_tour/subory/kateg.html
5. Forest functions, ecosystem stability and management