http://hdl.handle.net/20.500.12397/13471 Tue, 19 May 2026 15:56:26 GMT 2026-05-19T15:56:26Z https://acikerisim.deu.edu.tr:443/xmlui/bitstream/id/62820dad-c9e0-4db3-9c98-80650b6914d3/ http://hdl.handle.net/20.500.12397/13471