| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| KeyChamp 2.0 Macintosh Site License Package | 978-0-538-43458-4 | 2003 | Walter M. Sharp · Otto Santos |
| KeyChamp: Macintosh Network Site License | 978-0-538-66064-8 | 1998 | Walter M. Sharp · Otto Santos |
| KeyChamp: Windows Network Site License | 978-0-538-66063-1 | 1998 | Walter M. Sharp · Otto Santos |
| KeyChamp Windows Site License | 978-0-538-43388-4 | 2003 | Walter M. Sharp · Otto Santos |