1. Dŵr Cymru Welsh Water Surface Water Management Strategy – Phase 2: Surface Water Management Strategy in Wales, Recent Developments – a Literature Review;Ashley,2009
2. Surface Water Management and Urban Green Infrastructure: a Review of Potential Benefits and UK and International Practices [online];Ashley,2011
3. The socio-technology of engineering sustainability;Bell;Eng. Sustain.,2011
4. Socio-technological Regimes and Transition Contexts;Berkhout,2003
5. The Social Construction of Technological Systems: New Directions in the Sociology and History of Technology, Cambridge, Massachusetts,1987