https://www.lexpera.com.tr/resmi-gazete/22-05-1987/19467 monthly 2026-07-21T06:04:16Z https://www.lexpera.com.tr/resmi-gazete/metin/aritma-tesislerini-kurmak-ve-isletmek-icin-verilen-surenin-uzatilmasi-hakkinda-karar-19467-87-11786 1987-05-22T00:00:00Z https://www.lexpera.com.tr/resmi-gazete/metin/506-sayili-sosyal-sigortalar-kanununa-uc-gecici-madde-eklenmesine-dair-kanun-hukmunde-kararname-2 1987-05-22T00:00:00Z