https://www.lexpera.com.tr/resmi-gazete/13-05-1998/23341 monthly 2026-07-20T08:13:09Z https://www.lexpera.com.tr/resmi-gazete/metin/suleyman-demirel-universitesi-turk-dili-ogretimi-uygulama-ve-arastirma-merkezi-yonetmeligi-23341 1998-05-13T00:00:00Z