Vuković, Bojana, Sunčica Milutinović, Vera Mirović, and Nikola Milićević. “The Profitability Analysis of the Logistics Industry Companies in the Balkan Countries”. Promet - Traffic&Transportation 32, no. 4 (July 9, 2020): 497-511. Accessed August 7, 2020. http://traffic.fpz.hr/index.php/PROMTT/article/view/3311.