ZIMMERMAN, A. S. and J. BLYTHE. Business to Business Marketing Management: a Global Perspective. London: Routledge, 2013. ISBN 978-0-415-53703-2.
KOTLER, P. and G. ARMSTRONG. Principles of Marketing. 15th global ed. Harlow: Pearson, 2014. ISBN 978-0-273-78699-3.
KOZEL, R., VILAMOVÁ, Š. and M. PIECHA. The Use of Cluster Analysis in B2B Marketing Research. Košice: Technical University of Kosice, 2014. ISBN 978-80-553-1764-9.