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online databank van | certificaten
| certificaat | |
| gen. | електронен сертификат |
| online: 31 phrases in 8 subjects |
| Communications | 3 |
| Economy | 1 |
| Education | 1 |
| General | 1 |
| Information technology | 2 |
| Microsoft | 21 |
| Social science | 1 |
| Swimming | 1 |