| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1993 | 978-0-9638518-0-2 | Anne T. Clippard · David W. Ping · Gary R. Sweeten | Listening for heaven's sake: Building healthy relationships with God, self, and others (Apples of gold series) |
| '' | 978-0-9638518-1-9 | Anne Clippard · David W. Ping · Gary R. Sweeten | Listening for heaven's sake: building healthy relationships with God, self, and others |
| 2004 | 978-0-9638518-4-0 | Dave Ping | Irresistible Evangelism Training Kit |