Kruger, J.

Kruger, J., 1998. An outcomes-based, cross-curricular guide for developing learning programmes that are based on real-world issues related to sewage and sanitation in the Durban metropolitian area : for teachers of the intermediate and senior phases of the general educatio, Durban, South Africa: Durban Metro Department of Wastewater Management. Available at: https://nl.ircwash.org/sites/default/files/30116430.pdf.