Am 11.10.2016 um 16:05 schrieb edu Gpl:
this my physics book pdf and source code for free (gpl):
congratulations! Excellent work and a very important one. Education is
Especially in Arabic language there are not many science/education books
(except of religious books of course). But religion is not building
bridges, repairing refrigerators etc., people do and therefore need
knowledge how to do this.