Authors
Nicolae Alexandru Pop
The Bucharest University of Economics Studies,, Bucharest, Romania
Steluța Todea
The Bucharest University of Economics Studies,, Bucharest, Romania
© 2018 Nicolae Alexandru Pop, Steluța Todea, published by Bucharest University of Economic Studies
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.