1. Rogers, D. (2002), “Can Mac fight back?”, Marketing (UK), 17 October, p. 22, ISSN 0025‐3650.
2. Stires, D. (2002), “Fallen arches”, Fortune, 29 April, Vol. 145 No. 9, p. 44, ISSN 0738‐5587.
3. McDonald’s (http://www.mcdonalds.com)
4. The Motley Fool (http://www.fool.com)
5. The American Customer Satisfaction Index (http://www.theacsi.org)