1. Climate Change: The IPCC Scientific Assessment;IPCC (Intergovernmental Panel on Climate Change),1990
2. Climate Change 1995: Impacts, Adaptations and Mitigation of Climate Change: Scientific–Technical Analyses;IPCC, (Intergovernmental Panel on Climate Change),1996
3. IPCC, 2001. Climate Change 2001: Impacts, Adaptations and Mitigation. Summary for Policy makers. WMO/UNEP, Geneva, Switzerland
4. Kunz, R.P., 1993. Techniques to assess possible impacts of climate change in Southern Africa. Unpublished M.Sc. dissertation, Department of Agricultural Engineering, University of Natal, Pietermaritzburg, South Africa. DFID Report 98/4 April 1998. Institute of hydrology, Wallingford, Oxon OX10 8BB, UK
5. Miller, B.A., 1989. Global Climate Change—Implications of Large Water Resource Systems. Proceedings of the 1989 National Conference on Hydraulic Engineering, New Orleans, Louisiana