1. American survey: the next throw. (1995). The Economist, 334 (7906), 27–29.
2. Bond Buyer (The). (1996). October 25.
3. Raving fans;Bowles,1993
4. Brinkoetter, T. (1993). Service, Disney style, Executive Excellence, August, 3–5.
5. Business Week. (1995). October 10.