Authors
Amar Sayed Ahmad
The Bucharest University of Economic Studies, Bucharest, Romania
Hassan Nasseredine
The Bucharest University of Economic Studies, Bucharest, Romania
© 2019 Amar Sayed Ahmad, Hassan Nasseredine, published by Bucharest University of Economic Studies
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.