| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| An Easy Course in Using the HP-12C | 978-0-931011-03-0 (0-931011-03-5) | 1984 | Chris Coffin |
| The HP 12C Pocket Guide | 978-0-931011-12-2 (0-931011-12-4) | 1985 | Grapevine Publications · Chris Coffin · Robert L. Bloch |