Κατεβάστε δωρεάν χρήσιμα βιβλία θετικών επιστημών
http://math.stuff.gr/gr/index.php
http://freescience.info/index.php
http://www.2020ok.com
Free Engineering Online
http://www.pspxworld.com/book/mathematics/
http://homepages.nyu.edu/~jmg336/html/mathematics.html
http://directory.google.com/Top/Scie.../Online_Texts/
http://www.math.gatech.edu/~cain/tex...linebooks.html
http://us.geocities.com/alex_stef/mylist.html
http://dmoz.org/Science/Math/Publications/Online_Texts/
http://www.archive.org/details/texts
http://www.ams.org/online_bks/online_subject.html
