| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Galaxy 1: Activity Book | 978-0-333-95028-9 | 2001 | Sue Mohamed · Sagrario Salaberri · et al |
| Galaxy 2: Activity Book | 978-0-333-95033-3 | 2001 | Sue Mohamed · Sagrario Salaberri |
| Galaxy 2: Student's Book | 978-0-333-95032-6 | 2001 | Sue Mohamed · Sagrario Salaberri |
| Galaxy 3: Activity Book | 978-0-333-95038-8 | 2002 | Sue Mohamed · Sagrario Salaberri · Kathryn Harper |
| Galaxy 3: Student's Book | 978-0-333-95037-1 | 2002 | Sue Mohamed · Sagrario Salaberri · Kathryn Harper |