Biblio

N. Chege and Agha, S., “Attitudes towards water quality and water use practices in low income areas in Lusaka”. Population Services International, London, UK, p. 55 p. : fig., tabs., 1999.

S. A. A. Jahn, “Using Moringa seeds as coagulants in developing countries”, Journal American Water Works Association, pp. p. 43-50: tab., fig., photogr., 1988.

WHO -Geneva, CH, World Health Organization, “Report on the inter-regional travelling seminar on the purification and disinfection of drinking-water, Mosco-Kiev-Leningrad, 6-28 May 1971”. World Health Organization (WHO), Geneva, Switzerland, p. 26 pp., 1971.