Eitemau Tebyg: Science explorer :
- Prentice Hall Science Explorer Florida Physical Science /
- Prentice Hall Science Explorer : Albama Grade 6 /
- Prentice Hall Science Explorer : Indiana Grade 8 /
- Prentice Hall Science Explorer : Indiana Grade 8 /
- Prentice Hall Science Explorer : Oklahoma Grade 6 /
- Prentice Hall Science Explorer : New Mexico Grade 7