Spong, Mark W. and Vidyasagar M., Robot Dynamics and Control, John Wiley & Sons, New York, 1989.
Anton, Howard and Rorres, Chris, Elementary Linear Algebra, John Wiley & Sons, New York, 1994.
Abramson, Mary Ann, et. al., eds., Java Unleashed, Sams.net Publishing, Indianapolis, 1996.
Chan, Patrick and Lee, Rosanna, The Java Class Libraries, Addison-Wesley, Reading, MA, 1997.
The last image in the introductory section and the first two images in the conventions section are taken from:
Spong, Mark W. and Vidyasagar M., Robot Dynamics and Control, John Wiley & Sons, New York, 1989.