World Health Organization (WHO) (1996) Guidelines for Drinking Water Quality. 2nd Edition, Health and Supporting Criteria, Vol. 2, Geneva.
 World Health Organization (WHO) (1987) Technology for Water Supply and Sanitation in Developing Countries. Geneva.
 Franceys, R., Pickford, J. and Reed, R. (1992) A Guide to Development of Onsite Sanitation. World Health Organization, Geneva.
 Lewis, J.W., Foster, S.D. and Draser, B.S. (1980) The Risk of Groundwater Pollution by On-Site Sanitation in Developing Countries, a Literature Review. International Reference Centre for Wastes Disposal (IRCWD) Report No. 01/82, Duebendorf.
 DWAF (1996) South African Water Quality Guidelines. 2nd Edition, Volume 7: Aquatic Ecosystems. Department of Water Affairs and Forestry, Pretoria.
 Tsai, Y.-L., Sobsey, M.D., Sangermano, L.R. and Palmer, C.J. (1993) Simple Method of Concentrating Enteroviruses and Hepatitis A Virus from Sewage and Ocean Water for Rapid Detection by Reverse Transcriptase-Polymerase Chain Reaction. Applied and Environmental Microbiology, 59, 3488-3491.
 Rompré, A., Servais, P., Baudart, J., de-Roubin, M. and Laurent, P. (2002) Detection and Enumeration of Coliforms in Drinking Water: Current Methods and Emerging Approaches. Journal of Microbiological Methods, 49, 31-54.
 The National Environment Regulations (Uganda) (1999) Standards for Discharge of Effluent into Water or Wetland. Statutory Instrument Supplement No. 5.
 Simon, O. (2013) Assessing Charcoal Dust and Saw Dust as Sewage Purifiers. Final Year Research Project for Bachelor of Engineering in Civil and Building Engineering, Kyambogo University, Kampala.