University of Kragujevac Faculty of Hotel Management and Tourism in Vrnja(c)ka Banja Vojvodanska 5A Vrnja(c)ka Banja 36210 Serbia;
University of Kragujevac Faculty of Economics Liceja Kne(z)evine Srbije 3 Kragujevac 34000 Serbia;
University of Kragujevac Faculty of Hotel Management and Tourism in Vrnja(c)ka Banja Vojvodanska 5A Vrnja(c)ka Banja 36210 Serbia;