Kotler, P. Marketing Management. Analysis, Planning and Control, 2006.
The Saylor Foundation: Principles of Marketing, Available at: http://www.saylor.org/site/textbooks/Principles%20of%20Marketing.pdf
Czech Bar Association, Available at: http://www.cak.cz/en/
Representing Europe’s Lawyers ACT No. 85/1996 Sb. of 13th March 1996 on the Legal Profession