He wrote biology and earth and environment program

The program contains all the books of biology and earth and environmental science at the secondary level and the puppet regimes quarterly courses and two semesters I and II
You can save and browse and book immediately after loading

And all the links work directly without going to the download page

The program contains the following books:
* Student's Book
* Practical experiences of the student guide
* Practical experiences for the teacher guide
* Interactive booklet notes for the student
* Interactive booklet notes for the teacher
* Teacher's Guide
* Sources chapters
* Basics of reading in neighborhoods
* Survey directed at neighborhoods guide
* Open the survey in the neighborhoods guide

And academic levels classified as follows:

* High school semester system
* Secondary school system courses

All versions are available from the ministry approved textbooks