Author(s):
1. Željana Lojpur, University of East Sarajevo, Faculty of Technology, 75400 Zvornik, Republic of Srpska,
Republic of Srpska, Bosnia and Herzegovina
2. Vladan Mićić,
Republic of Srpska, Bosnia and Herzegovina
3. Nebojša Vasiljević, Tehnološki fakultet Zvornik,
Republic of Srpska, Bosnia and Herzegovina
4. Mirko Petković, Rafinerija ulja Modriča,
Republic of Srpska, Bosnia and Herzegovina