| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Twelve Keys to an Effective Church | 978-0-7879-3871-0 (0-7879-3871-8) | 1997 | Kennon L. Callahan |
| Twelve Keys to an Effective Church, Study Guide | 978-0-7879-3942-7 (0-7879-3942-0) | 1997 | " |
| Twelve Keys to an Effective Church, The Planning Workbook | 978-0-7879-3873-4 (0-7879-3873-4) | 1997 | " |