Richters, R.

Thompson, H. e.a., 2001. Policies, legislation and organizations related to water in South Africa, with special reference to the Olifants River Basin, (Working paper / IWMI no. 18) Colombo, Sri Lanka: International Water Management Institute (IWMI). Available at: https://nl.ircwash.org/sites/default/files/Thompson--2001-Policies.pdf.