- english: ace! class book 4 (katherine & steve bilsborough). Editorial oxford - 978-01-940-0769-6
- english: ace! activity book 4 (katherine & steve bilsborough). Editorial oxford - 978-01-940-0690-3
- science: social & natural sciences class book 4. Look & think. Editorial oxford education - 978-84- 673-5561-1
- science: social & natural sciences activity book 4. Look & think. Editorial oxford education - 978-84-673-5562-8
Comments