| title | ISBN-13 | year of publication |
|---|---|---|
| Passport to English 1 Sb | 978-9956-12-000-0 | |
| Passport To English 3 SB | 978-9956-12-002-4 | |
| Passport To English 3 TB | 978-9956-12-012-3 | 2001 |
| Passport To English 4 TB | 978-9956-12-011-6 | 2001 |
| Passport to English Cameroon 5 | 978-9956-12-205-9 | 2005 |