1. A systematic review and meta-analysis. Lancet Infectious Diseases, 5, 42-52.
2. Brewster, D.R., Greenwood, B.M., 1993. Seasonal variation of paediatric diseases in the Gambia, West Africa. Annals of Tropical Paediatrics 13 (2), 133-46.
3. Cheesbrough M. District laboratory practice in tropical countries part 2. Cambridge University Press, New York; 2006. ISBN-13 978-0-511-34842-6.
4. Chabalala, Hlupheka, and Hailemariam Mamo. Prevalence of Water-borne Diseases within Health Facilities in Nakuru, Kenya.
5. Dickin. Sarah K, (2014), Assessing vulnerability to water-associated disease: an ecosystem approach to health, A Thesis Submitted to the School of Graduate.