The biology and laboratory host range of the Weevil Listronotus Marginicollis (Hustache) (Coleoptera: Curculionidae), a natural enemy of the invasive aquatic weed Myriophyllum Aquaticum (Velloso) Verde (Haloragaceae) (Parrot’s Feather)
Large scale stability and Neutralisation capacity of Potential mine backfill material Formed by neutralisation of fly ash And acid mine drainage
Waste minimisation clubs in South Africa: A guide to training waste minimisation club members – Training manual
Strategic review of current and emerging governance systems related to water in the environment in South Africa