 | Master profesor srps Milan Gromović | https://ekonferencije.com/site/authorsbycountry/0 | |
| Aleksandar Vujić | Armenia | |
| student Milica Knežević | Armenia | |
| Stevan Salatić |
Republic of Srpska, Bosnia and Herzegovina | |
| Atanas Yonkov | https://ekonferencije.com/site/authorsbycountry/0 | |
| SOFIA GOMES | https://ekonferencije.com/site/authorsbycountry/0 | |
| Sofia Gomes | https://ekonferencije.com/site/authorsbycountry/0 | |
| Sonja Terzić |
Republic of Srpska, Bosnia and Herzegovina | |
 | Bojan Marić |
Republic of Srpska, Bosnia and Herzegovina | |
| Dragoljub Todić | Albania | |
