Authors
Maria-Irina Ana
The Bucharest University of Economic Studies,, Bucharest, Romania
Anca-Georgiana Andrei
The Bucharest University of Economic Studies,, Bucharest, Romania
© 2018 Maria-Irina Ana, Anca-Georgiana Andrei, published by Bucharest University of Economic Studies
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.