1. IHE Delft Institute for Water Education, Delft 2611 AX, The Netherlands
2. Central University College, Accra Miotso Campus, P.O. Box 2305, Tema, Ghana
3. Nelson Mandela African Institute of Science and Technology, P.O. Box 9124, Arusha, Tanzania
4. Makerere University, P.O. Box 7062, Kampala, Uganda