| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 2007 | 978-0-9745380-1-3 | Alan Rigg | How to Beat the 80/20 Rule in Sales Team Performance: A Step-By-Step Guide to Building and Managing Top-Performing Sales Teams |
| '' | 978-0-9745380-3-7 | Alan Rigg | How to Beat the 80/20 Rule in Sales Team Performance: A Step-by-Step Guide to Building and Managing Top-Performing Sales Teams |
| '' | 978-0-9745380-5-1 | '' | How to Beat the 80/20 Rule in Selling: A Step-By-Step Guide to Achieving Top Sales Performance |