https://www.lexpera.com.tr/resmi-gazete/26-08-1987/19556 monthly 2026-07-17T13:32:45Z https://www.lexpera.com.tr/resmi-gazete/metin/isletme-buyuklugu-olculerinin-tespitine-dair-karar-19556-87-11986 1987-08-26T00:00:00Z