OBS_VALUE: <ul><li><a href=http://www.mevzuat.gov.tr/MevzuatMetin/1.5.2920.pdf target=_blank>Turkish Civil Aviation Law(TÜRK SİVİL HAVACILIK KANUNU, Law nr.2920, adopted 1980, with latest modifications of 21/2/2019, )</a></li></ul>