1. Ackerson NOB, Awuah E (2012) Microbial risk assessment of urban agricultural farming: a case study on Kwame Nkrumah University of Science and Technology Campus, Kumasi, Ghana. Int J Sci Technol 1(3):23–29
2. APHA, AWWA, WEF (2001) Standard methods for the examination of water and wastewater, 22nd edn. American Public Health Association, Washington, DC
3. Chapelle FH (2001) Ground-water microbiology and geochemistry, 2nd edn. Wiley, New York, p 424
4. Collins CH, Lyne PM, Grange JM (1989) Collins and Lyne’s microbial methods, 6th edn. Butterworths, London
5. Crowther J, Kay D, Wyer MD (2001) Relationship between microbial water quality and environmental conditions in coastal recreational waters: the Fylde Coast. UK. Water Res 35(17):4029–4038