1. P. Kotler and G. Armstrong, Principles of Marketing (Pearson Education, Harlow, 2016).
2. D. Chaffey, F. Ellis-Chadwick, K. Johnston and R. Mayer, Internet Marketing: Strategy, Implementation and Practice (Pearson Education, Harlow, 2009).
3. D. N. Gujarati and D. C. Porter, Basic Econometrics (McGraw-Hill Education, New York, 2009).
4. Small Sample Robust Testing for Normality against Pareto Tails
5. On robust testing for normality in chemometrics