http://it-ebooks.info/book/3126/
http://debian-handbook.info/get/now/
https://packages.debian.org/search?keywords=ebook-speaker
http://www.oreilly.com/openbook/debian/book/
http://www.tecmint.com/10-useful-free-linux-ebooks-for-newbies-and-administrators/
http://it-ebooks.info/book/403/
http://it-ebooks.info/tag/linux/
http://linuxcommand.org/tlcl.php
http://www.onlineprogrammingbooks.com/linux/
,
----------------------
http://debian-handbook.info/get/now/
https://packages.debian.org/search?keywords=ebook-speaker
http://www.oreilly.com/openbook/debian/book/
http://www.tecmint.com/10-useful-free-linux-ebooks-for-newbies-and-administrators/
http://it-ebooks.info/book/403/
http://it-ebooks.info/tag/linux/
http://linuxcommand.org/tlcl.php
http://www.onlineprogrammingbooks.com/linux/
,