Gasic, Marko, Ljubica Janjić, and Slobodan Čavić. “The Role and Importance of Marketing Managers in the company’s Business: The Case of JS Planinka from Kuršumlija”. BizInfo (Blace) Journal of Economics, Management and Informatics 11, no. 2 (December 28, 2020): 67-80. Accessed January 19, 2021. http://bizinfo.edu.rs/index.php/bizinfo/article/view/194.