| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| The Gamification Handbook - Everything You Need to Know about Gamification | 978-1-743O4-O57-7 (1-743O4-O57-1) | 2011 |
J. H. · J. Hunter · R. H. · R. Hunter · R.J. · Robert H. · Robert Hunter · Robert J. · Robert J. Hunter