https://www.lexpera.com.tr/resmi-gazete/19-08-1991/20965 monthly 2026-07-16T05:28:30Z https://www.lexpera.com.tr/resmi-gazete/metin/hacettepe-universitesi-devlet-konservatuvari-lisans-ogretim-ve-sinav-yonetmeliginde-degisiklik 1991-08-19T00:00:00Z