مشاركات داعئية فيسبوك

[mazen sayed]

For who have face book
there is a group for chemistry called (chemistry lovers and haters)
this group for chemistry which provide every one by video and notes for chemistry
and this it's link

http://www.facebook.com/group.php?gid=110549585661699&ref=ts#!/group.php?gid=135936659768412&ref=ts