| title | ISBN-13 | year of publication |
|---|---|---|
| Building Comprehension - Grade 5 | 978-0-7877-0394-3 | 1999 |
| Building Comprehension - Grade 7 | 978-0-7877-0396-7 | 1999 |
| Building Comprehension - Grade 9 | 978-0-7877-0398-1 | 1999 |
| Our Global Village - India | 978-0-7877-0276-2 | 1996 |
| Our Global Village - Sweden | 978-0-7877-0277-9 | 1996 |