https://www.lexpera.com.tr/resmi-gazete/07-10-2003/25252 monthly 2026-10-09T14:54:39Z https://www.lexpera.com.tr/resmi-gazete/metin/turk-telekom-personeli-biriktirme-ve-yardim-sandigi-genel-yonetmeligi-25252 2003-10-07T00:00:00Z