1. Allegra Strategies Limited. (1999). Project Café: UK Retail Coffee Shop Market Strategic Analysis.
2. Consumer preference for retail fat spreads;Bower;Food Quality and Preference,1998
3. Carroll, J. D. (1972). Individual differences and multidimensional scaling. In R. N. Shepard, A. K. Romney, & S. Nerlove. Multidimensional scaling: theory and applications in the behavioral sciences (Vol. 1, pp. 105–155). New York: Seminar Press.
4. European dimensions of coffee;Dijksterhuis;Food Quality and Preference,1998
5. Euromonitor. (1996). Coffee. Market Research GB.