2C. L. Knottaand M. St. James. An alternate approach to developing a total celebrity endorser rating model using the analytic hierarchy process. Intl. Trans. in Op.Res. 11 (2004)87,95.
3Brian D. Till. Using celebrity endorsers effectively: lessons from associative learning. Journal of product & brand management, VOL. 5 (1998) 400,409.