References are individual based on the topic of diploma work.
MALHOTRA, Naresh K. Marketing Research. An Applied Approach. 7th ed. New Jersey: Prentice Hall, 2019. 888 s. ISBN 978-1292265636.
McCORMICK, Keith et al. SPSS Statistics for Data Analysis and Visualization. Indianapolis: Wiley, 2017. ISBN 978-1-119-00355-7.
Directive No. EkF_SME_12_002 of the Dean of the Faculty of Economics VŠB-TU Ostrava on Guidelines for GraduateTheses [online]. Available at: https://dokumenty.vsb.cz/docs/files/cs/0667d8d0-3b7d-4599-b8ad-d3335d5f4b0a