| year of publication | ISBN | author(s) | title |
|---|
| 1986 | 978-0-935907-00-1 | George W. Dudley | The Psychology of Call-Reluctance: How to Overcome the Fear of Self-Promotion |
| '' | 978-0-935907-01-8 | '' | The Psychology of Call-Reluctance: How to Overcome the Fear of Self-Promotion |
| 1991 | 978-0-935907-02-5 | George W. Dudley · Shannon L. Goodson | The Psychology of Call Reluctance |
| '' | 978-0-935907-03-2 | '' | Earning What You're Worth?: The Psychology of Sales Call Reluctance |
| 1992 | 978-0-935907-04-9 | George W Dudley | Earning What You're worth?: The Psychology of Sales Call Reluctance |
| 1995 | 978-0-935907-05-6 | George W. Dudley | Earning What You're Worth?: The Psychology of Sales Call Reluctance |
| '' | 978-0-935907-06-3 | '' | Earning What You're Worth?: The Psychology of Sales Call Reluctance |
| 1999 | 978-0-935907-07-0 | '' | The Psychology of Sales Call Reluctance: Earning What You're Worth in Sales |
| 2008 | 978-0-935907-09-4 | George W. Dudley · John F. Tanner | The Hard Truth About Soft-Selling: Restoring Pride and Purpose to the Sales Profession |
| 2007 | 978-0-935907-12-4 | George W. Dudley · Shannon L. Goodson | The Psychology of Sales Call Reluctance: Earning What You're Worth in Sales |