| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Ket perfect. A preparation course for the Cambridge ESOL Key English Test. Per la Scuola media. Con CD Audio | 978-88-08-06901-6 (88-08-06901-X) | 2006 |
| Pet perfect. A preparation course for the Cambridge ESOL. Preliminary English Test. Student's book. Con CD Audio | 978-88-08-17182-5 (88-08-17182-5) | 2005 |