1. Audit, Accounting, Financial and Consulting Service Company “Moodys Standards” Ltd., 11000 Belgrade, Serbia
2. Faculty of Hotel Management and Tourism in Vrnjačka Banja, University of Kragujevac, 36210 Vrnjačka Banja, Serbia
3. Toplica Academy Professional Studies—Department of Business Studies Blace, 18420 Blace, Serbia
4. Faculty of Medical Science, University of Kragujevac, 34000 Kragujevac, Serbia
5. Faculty of Organizational Sciences, University of Belgrade, 11000 Belgrade, Serbia
6. Faculty of Economics and Informatics, University of Novo Mesto, 8000 Novo Mesto, Slovenia