Doerr, J. 6 Keys to Prospecting Success. Recuperado de: http://www.rainsalestraining.com/blog/sales-prospecting-6-keys-to-success/

Werth, J. Top 10 Tips for Prospecting Success. Recuperado de: http://www.highprobsell.com/html/10_prospecting_tips.html

Werth, J. High Probability Prospecting – Some Basics: Easy, Effective, Efficient, and Enjoyable! Recuperado de: http://www.highprobsell.com/html/prospecting_basics.html