https://www.lexpera.com.tr/resmi-gazete/13-02-1980/16899 monthly 2026-10-23T14:41:14Z https://www.lexpera.com.tr/resmi-gazete/metin/506-sayili-sosyal-sigortalar-kanununun-2167-sayili-kanunla-degistirilen-102-nci-maddesinde-3 1980-02-13T00:00:00Z