Just click on the link below to download mathematics books.
Following books of mathematics are in djvu file format, to read this book u have to download djvu reader so i give u one link to download djvu reader. if u got any problem then comment here.
Discrete Mathematics :
AdvancedEngineeringMaths-Kreyzig
http://www.mediafire.com/?otwlggu5mio
ROSEN
Discrete mathematics and it's applications 6th Edition
http://www.mediafire.com/?yjudngmmjmo
Graph.Theory Narisng Deo
http://www.mediafire.com/?jnaqnmmmyay
Schaum's Outline of Differential Equations
http://www.mediafire.com/?nym4jjnkzzg
Differential calculus schaum series
http://www.mediafire.com/?oznjzkhnann
Schaum outline DiscretMath
http://www.mediafire.com/?ieyl5glnazu
DJVU reader....
http://rapidshare.com/files/266198459/djvu_reader.rar