| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Lei Level 3 UK Communications Companion | 978-0-13-184346-2 (0-13-184346-X) | 2003 |
| Lei Level 4 UK Communications Companion | 978-0-13-184348-6 (0-13-184348-6) | 2003 |
| Longman English Interactive Level 3 Communication Companion | 978-0-13-184345-5 (0-13-184345-1) | 2003 |