Authors
Maria Ilcheva
Methodius University of Veliko Tarnovo, Bulgaria
Nevena Byanova
Methodius University of Veliko Tarnovo, Bulgaria
Iliyan Mateev
Methodius University of Veliko Tarnovo, Bulgaria
© 2025 Vanya Tsonkova, Maria Ilcheva, Nevena Byanova, Iliyan Mateev, published by Bucharest University of Economic Studies
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.