13,30 € 14,00

11,40 € 12,00

57,00 € 60,00

11,40 € 12,00

3,51 € 3,70

9,50 € 10,00

The Future Opportunities and Challenges of Business in Digital Era 4.0

38,68 € 42,96

24,65 € 29,00

13,30 € 14,00