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Publicado en línea: 03 ene 2019
Páginas: 49 - 56
Recibido: 05 may 2018
Aceptado: 19 may 2018
DOI: https://doi.org/10.2478/eoik-2018-0025
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© 2018 Nenad Vunjak et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.
Vunjak, Nenad
High School Modern BusinessBelgrade, Serbia
Vitomir, Jelena
Agricultural High SchoolBijeljina, Bosnia and Herzegovina
Antonijević, Tamara
Agricultural High SchoolBijeljina, Bosnia and Herzegovina
Stojanović, Petra
Agricultural High SchoolBijeljina, Bosnia and Herzegovina