Biblio

J. Kinnear and Cairncross, S., “Water vending in urban Sudan”, International journal of water resources development, pp. p. 267-273: 1 fig., 1 tab., 1991.

J. Kinnear and Cairncross, S., “Measurement of the elasticity of domestic water demand : a study of water vendors and their clients in urban Sudan”. London School of Hygiene and Tropical Medicine, London, UK, p. 120 p.: fig., tab., 1988.