Mazurek-Łopacińska K, Sobocińska M. The Evolution of the Conceptual Scope of Marketing and Changes in the Areas, Methods and Techniques of Research. KREM [Internet]. 2015 Dec. 19 [cited 2024 Nov. 22];(909):5-15. Available from: https://krem.uek.krakow.pl/index.php/krem/article/view/783