1. Monitoring Millennium Development Goals for Water and Sanitation: A Review of Experiences and Challenges, IRC International Water and Sanitation Centre, Delft, the Netherlands;Shordt,2004
2. See B. Gross, C.V. Wijk and N. Mukherjee, Linking Sustainability with Demand, Gender and Poverty: A Study in Community-managed Water Supply Projects in 15 Countries, IRC International Water and Sanitation Centre, Delft, the Netherlands, 2001.
3. Monitoring Millennium Development Goals for Water and Sanitation: A Review of Experiences and Challenges, IRC International Water and Sanitation Centre, Delft, the Netherlands;Shordt,2004
4. Law of Environmental Protection, Materials and Texts, Caltop Publications Nigeria Limited, Ibadan;Okorodudu-Fubara,1998
5. Statutory control of municipal and industrial water pollution: Nigeria’s efforts so far;Salami,1998