1. Advertising Association (1997) Marketing Pocket Book. Henley-on-Thames: NTC Publications.
2. Centre for Leisure and Tourism Studies (1989) EIF Exhibition Effectiveness Survey. London: Centre for Leisure and Tourism Studies, pp. 3-4.
3. Centre for Leisure and Tourism Studies (1994) The Exhibition Industry Research Report - The Facts 1994. London: Centre for Leisure and Tourism Studies.
4. Cotterell, P. (1992) Exhibitions; An Exhibitor's Guide. London: Hodder and Stoughton.
5. Gramman, J. (1993) Independent Market Research. Birmingham: Centre Exhibitions, National Exhibition Centre.