| title | ISBN-13 | year of publication |
|---|---|---|
| Module 4 Skill Support Activities Set 1 | 978-0-521-37920-5 | 1989 |
| Module 5 Skill support activities set 1 | 978-0-521-37919-9 | 1990 |
| Module 6 Skill support activities set 1 | 978-0-521-37921-2 | 1991 |
| Module 7 Skill support activities set 1 | 978-0-521-37922-9 | 1992 |