https://www.lexpera.com.tr/resmi-gazete/30-11-1984/18591 monthly 2026-07-16T13:52:14Z https://www.lexpera.com.tr/resmi-gazete/metin/katma-deger-vergisi-genel-tebligi-18591-seri-no-1 1984-11-30T00:00:00Z