Samadzad, Saeideh, and Mirabbas Hashemi. “Concentration and Its Effect on Advertising: Case Study: Iranian Food and Beverage Industries”. International Journal of Innovation in Management, Economics and Social Sciences 1, no. 1 (April 2, 2021): 55–64. Accessed May 20, 2024. https://ijimes.ir/index.php/ijimes/article/view/9.