1. Bartels R., The History of Marketing Thought, 2nd edition, in Jones, B.D.G., Shaw, E.H., A History of Marketing Thought, 2002, accessed online in 2023, https://www.researchgate.net/publication/235362475_A_History_of_Marketing_Thought,
2. Balaure, V. (coord.), Marketing, Uranus Publishing House, 2nd Edition, Bucharest, 2002
3. Baker, M.J., The marketing book, 5th Edition, Butterworth-Heineman, Elsevier, 2003, p.3;
4. Baker, M.J., Hart, S., The marketing book, 6th edition, Butterworth-Heinemann, Oxford, UK, 2008;
5. Eliss et.al., Introducing the History of Marketing Theory and Practice, Marketing course, https://www.sagepub.com/sites/default/files/upm-binaries/37775_02_Eliss_et_al_Ch_01.pdf