YÜCENURŞEN, M. (2019). REKABET AVANTAJI VE MALİYET MİNİMİZASYON ARACI OLARAK DOĞRUDAN PAZARLAMA. International Journal of Social and Humanities Sciences Research (JSHSR), 6(46), 3942–3951. https://doi.org/10.26450/jshsr.1364