U. Directorat UG,
“Community contribution and collection guide”. Uganda, Ministry of Natural Resources, Directorate of Water Development, Kampala, Uganda, p. 16 p., 1997.
Z. A. C. S. I. R. - Pretoria and ZA, S. Africa. De,
Implementing prepayment water metering systems. Pretoria, South Africa: South Africa, Department of Water Affairs and Forestry, 1997, p. x, 59 p. : 8 fig., 6 tab.
B. Boubacar,
“La faisabilite economique du paiement de l'eau”. Office International de l'Eau, Limoges, France, p. 46 p. : tab., 1997.
T. S. Katko and Hukka, J. J.,
“Towards viable drinking water services”,
Natural resources forum, pp. p. 161-167 : 5 fig., 1997.
M. Kariuki and Gikaru, L.,
“The water kiosks of Kibera”. UNDP-World Bank, Regional Water and Sanitation Group Eastern and Southern Africa, Nairobi, Kenya, p. 4 p. : 2 boxes, 3 photogr., tab., 1997.