- Livre électroniquePerfect Phrases for the Sales Call, Second EditionJeb Brooks
- Livre électroniqueHow to Sell at Margins Higher Than Your CompetitorsWilliam T. Brooks
- Livre électroniqueThe New Science of Selling and PersuasionWilliam T. Brooks
- Livre électroniqueSales TechniquesWilliam T. Brooks
- Livre électroniqueThe Complete Book of Perfect Phrases for High-Performing Sales ProfessionalsRobert Bacal
- Livre électroniquePlaying Bigger Than You AreWilliam T. Brooks