Mazurek-Łopacińska, Krystyna, and Magdalena Sobocińska. “The Evolution of the Conceptual Scope of Marketing and Changes in the Areas, Methods and Techniques of Research”. Krakow Review of Economics and Management/Zeszyty Naukowe Uniwersytetu Ekonomicznego w Krakowie, no. 909 (December 19, 2015): 5–15. Accessed September 20, 2024. https://krem.uek.krakow.pl/index.php/krem/article/view/783.