[Beazley2001] Python. Essential Reference. 2. David M. Beazley. 0-7357-1091-0. New Riders. 2001.

[Christopher2002] Python Programming Patterns. Thomas W Christopher. 0-13-040956-1. Prentice Hall. 2002.

[Deitel2002] Python. How to program. H. M. Deitel, P. J. Deitel, J. P. Liperi, and B. A. Wiederman. 0-13-092361-3. Prentice Hall. 2002.

[Downey2002] How to Think Like a Computer Scientist. Learining with Python. Allen Downey, Jeffrey Elkner, and Chris Meyers. 0-97167775-0-6. Green Tea Press. 2002. www.thinkpython.com.

[Goldwasser2007] Object-oriented Programming in Python. Michael H. Goldwasser. David Letscher. 0136150314. . 2007.

[Grayson2000] Python and Tkinter Programming. John E. Grayson. 1-884777-81-3. Manning Publications Co.. 2000.

[LutzAscher2001] Learning Python. Mark Lutz and David Ascher. 1-56592-464-9. O'Reilly. 2001.

[Lutz2001] Programming Python. Mark Lutz. 0-596-00085-5. O'Reilly. 2001.

[Martelli2002] Python Cookbook. Alex Martelli and David Ascher. 0-596-00167-3. O'Reilly. 2002.

[Zelle2003] Python Programming. An introduction to computer science. John Zelle. 1887902996. Franklin, Beedle and Associates, Inc.. 2003. http://mcsp.wartburg.edu/zelle/python/ .

[Meyer97] Object Oriented software Construction. Bertrand Meyer. 0-13-629155-4. Prentice Hall Professional Technical Reference. 1997.

[Booch94] Object-Oriented Analysis and Design with Applications. Grady Booch. Addison-Wesley Object Technology Series. 1994.

[Gamma95] Design Patterns, Elements of Reusable Object-Oriented Software. Erich Gamma, Richard Helm, Ralph Johnson, and John Vlissides. Addison Wesley. 1995.

[Harrison97] Tcl/Tk Tools. Mark Harrison. O'Reilly. 1997.

[Wegner89] BYTE Magazine. “Learning the language”. Peter Wegner. 245-253. march, 1989.

[Mangalam2002] The Bio* toolkits - a brief overview. “Briefings in Bioinformatics”. Harry Mangalam. 296-302. 2002. http://bib.oxfordjournals.org/cgi/content/abstract/3/3/296 .

[Rossum99] Computer Programming for Everybody. Guido van Rossum. 1999. http://www.python.org/doc/essays/cp4e.html .

[Wang2000] A Qualitative Analysis of the Usability of Perl, Python, and Tcl. Proceedings of The Tenth International Python Conference. Lingyun Wang and Phil Pfeiffer. 2002.

[Paton1999] Conceptual modelling of genomic information.. “Bioinformatics”. Norman W. Paton, Shakeel A. Kahn, Andrew Hayes, Fouzia Moussouni, Andy Brass, Karen Eilbeck, Carole A. Goble, Simon J. Hubbard, and Stephen G. Oliver. . 1999. http://bioinformatics.oxfordjournals.org/cgi/reprint/16/6/548.pdf.