1. Adams D.M., Alig R., McCarl B., Callaway J. and Winnett S. 1999. Minimum cost strategies for sequestering carbon in forests. Land Economics. 75: 360–374.
2. Asian Development Bank 1991. Appraisal of the forest plantations sector project in the Philippines. Asian Development Bank, Manila, Philippines.
3. Bin L. 1994. The impact assessment of land use change in the watershed area using remote sensing and GIS: A case study of the Manupali watershed, the Philippines. Masters Degree Thesis. School of Environment, Resources and Development, Asian Institute of Technology, Bangkok, Thailand.
4. Brown S. 1997. Estimating biomass and biomass change of tropical forests-A Primer. FAO Forestry Paper Number 134.
5. Brown S., Sadhe J., Cannell M., and Kauppi P. E. 1996. Management of forests for mitigation of greenhouse gas emissions. In: Working Group II, Second Assessment Report, Intragovernmental Panel on Climate Change. Cambridge University Press, Cambridge, UK.