https://www.lexpera.com.tr/resmi-gazete/23-12-2012/28506 monthly 2026-07-17T04:48:11Z https://www.lexpera.com.tr/resmi-gazete/metin/baskent-universitesi-satinalma-ve-ihale-yonetmeligi-28506-1 2012-12-23T00:00:00Z