MUSAH, A.E. and OSAFO-YEBOAH, A., 1994. Sustainable integrated water supply. IN: Pickford, J. et al. (eds). Affordable water supply and sanitation: Proceedings of the 20th WEDC International Conference, Colombo, Sri Lanka, 22-26 August 1994, pp.115-117.
This is a conference paper. The title of this paper in the Contents for this conference is "Sustainable RWS, the NORRIP experience".