Author(s):
1. Dragica Lazić, Republic of Srpska, Bosnia and Herzegovina
2. Dragana Kešelj, Faculty of Technology - University of East Sarajevo, Republic of Srpska, Bosnia and Herzegovina
3. Mitar Perušić, Faculty of Technology - University of East Sarajevo, Republic of Srpska, Bosnia and Herzegovina
4. Gordana Ostojic, Republic of Srpska, Bosnia and Herzegovina
5. Dijana Drljača, Faculty of Technology Banja Luka, Republic of Srpska, Bosnia and Herzegovina

Final paper