1. Abeysuriya, K., C. Mitchell and J. Willetts (2005) `Cost Recovery for Urban Sanitation in Asian Countries: Insurmountable Barrier or Opportunity for Sustainability?', Australia New Zealand Society for Ecological Economics Conference, Massey University, New Zealand.
2. Water pricing and markets in the Near East: policy issues and options
3. Estimation of reduced and increasing health risks by installation of urban wastewater systems