https://www.lexpera.com.tr/resmi-gazete/20-02-1988/19731 monthly 2026-10-09T14:54:39Z https://www.lexpera.com.tr/resmi-gazete/metin/85-10175-sayili-kararnamenin-degistirilmesine-dair-karar-19731-88-12645 1988-02-20T00:00:00Z