Аутори:
1. Nevena Jokić, Медицински факултет Бања Лука ,
Republic of Srpska, Bosnia and Herzegovina
2. Branka Rodić-Grabovac, Faculty of Technology Banja Luka,
Republic of Srpska, Bosnia and Herzegovina
3. Ljiljana Topalić-Trivunović, Faculty of Technology Banja Luka,
Republic of Srpska, Bosnia and Herzegovina