Hadžialić, Sabahudin, International University Travnik, Travnik, Bosnia and Herzegovina
e-mail: sabahudin.hadzialic@iu-travnik.com
UNINETTUNO University, Rome, Italy
e-mail: sabahudin.hadzialic@uninettunouniversity.net
Vilnius University, Kaunas, Lithuania
e-mail: sabihadzi@gmail.com
Megatrend University, Belgrade, Serbia
e-mail: sabihadzi@gmail.com, Bosnia and Herzegovina