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| σύστημα κοινωνικής ασφάλισης | |||
| σύστημα κοινωνικής ασφαλίσεως; καθεστώς κοινωνικής ασφαλίσεως | |||
| stelsel van sociale zekerheid: 15 phrases in 7 subjects |
| General | 1 |
| Government, administration and public services | 1 |
| Information technology | 1 |
| Insurance | 4 |
| Law | 2 |
| Security systems | 3 |
| Social science | 3 |