Authors
Ružica Petrović
ruzica.petrovic@eknfak.ni.ac.rs
University of Niš, Faculty od Economics, Republic of Serbia
Dragana Radenković Jocić
University of Niš, Faculty od Economics, Republic of Serbia
Tamara Milenković Kerković
tamara.kerkovic@eknfak.ni.ac.rs
University of Niš, Faculty od Economics, Republic of Serbia