Ragin

The Comparative Method: Moving Beyond Qualitative and Quantitative Strategies by Ragin University of California Press Paperback 1 July 1992 from£N/A | RRP: ~~£16.95~~
Redesigning Social Inquiry: Fuzzy Sets and Beyond by CC Ragin Chicago University Press Paperback 19 September 2008 from£21.62 | RRP: ~~£12.5~~
Fuzzy-Set Social Science by CC Ragin Chicago University Press Paperback 14 August 2000 from£N/A | RRP: ~~£19.5~~