| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| So It's Tough Out There, Is It?: A Parable for People in Business | 978-0-9530063-3-5 | 2006 | |
| The Male Agenda | 978-0-9530063-2-8 | 2002 | |
| The Truth about Illness, Unhappiness and Stress? | 978-0-9530063-1-1 | 2006 | |
| Truth About Illness, Unhappiness and Stress? | 978-0-9530063-0-4 | 1997 | Winifred Boon |