1. Faculty of Economics and Engineering Management, University Business Academy, Cvećarska 2, 21000 Novi Sad, Serbia
2. Subotica Tech—College of Applied Sciences, Marka Oreškoviċa 16, 24000 Subotica, Serbia
3. JKP Tržnica, Novi Sad, Žike Popovića 4, 21000 Novi Sad, Serbia
4. Department of Business and Information Studies, Belgrade Business and Arts Academy of Applied Studies, Kraljice Marije 73, 11050 Belgrade, Serbia
5. Faculty of Economics in Subotica, University of Novi Sad, Dr Sime Miloševića 16, 21000 Novi Sad, Serbia