| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| HIGCSE Biology Module 1 | 978-0-521-52047-8 | 2002 | Stephen Webb · Di Barton |
| HIGCSE Biology Module 2 | 978-0-521-52048-5 | 2002 | Stephen Webb · Di Barton |
| HIGCSE Biology Module 3 | 978-0-521-52049-2 | 2002 | Stephen Webb |
| HIGCSE Biology Module 4 | 978-0-521-52050-8 | 2002 | " |