1. Arntzen J (2001) Sustainable water management in southern Africa: an integrated perspective. In: Gash JHC, Odada EO, Oyebande L, Schulze RE (eds) Freshwater resources in Africa. Proceedings of a workshop, Nairobi, Kenya, Oct 1999, pp 81–87. Biospheric Aspects of the Hydrological Cycle
2. Ashton PJ (1999) Integrated catchment management balancing resource conservation with utilization. In: Proceedings of the South African water management conference, Kempton Park, South Africa, 2–4 Aug, 12 pp
3. Ashton PJ (2009) An overview of the current status of water quality in South Africa and possible future trends of change. Water Ecosystems and Human Health Research Group, Natural Resources and the Environment Unit, CSIR, Pretoria
4. Ashton PJ, Hardwick D, Breen C (2008) Changes in water availability and demand within South Africa’s shared river basins as determinants or regional, social and ecological resilience. In: Burns M, Weaver A (eds) Exploring sustainability science: a southern African perspective. African Sun Media, Stellenbosch, South Africa
5. Basson MS, van Niekerk PH, van Rooyen JN (1997) Overview of water resources availability and utilisation in South Africa. Department of Water and Sanitation and BKS (Pty) Ltd, Pretoria