| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 2001 | 978-0-9541811-0-9 | Glenn Hutton | Key Skills: Questions and Answers: Application of Number: Level1, Level2 & Level3 |
| 2002 | 978-0-9541811-1-6 | Glenn Hutton · Rosalie Hutton | Key Skills Questions and Answers: Communication |
| '' | 978-0-9541811-2-3 | Information Technology: Levels 1 and 2 (Key Skill Questions & Answers) | |