http://media.wiley.com/product_data/excerpt/87/04700747/0470074787.pdf
http://ocw.mit.edu/NR/rdonlyres/Aeronautics-and-Astronautics/16-06Fall2003/301FC923-1E00-4432-B9EF-341E83A695AF/0/l3.pdf
http://www.bit.lk/teachingmaterial/IT1402/index.htm
these may help :D. aha Starting a Digree lolz :P