https://www.lexpera.com.tr/resmi-gazete/19-04-1990/20497 monthly 2026-07-17T13:32:45Z https://www.lexpera.com.tr/resmi-gazete/metin/devlet-meteoroloji-isleri-genel-mudurlugu-anadolu-meteoroloji-meslek-lisesinde-ve-hizmetici-egitim-1 1990-04-19T00:00:00Z