http://hdl.handle.net/20.500.12397/13480 Tue, 21 Apr 2026 11:31:55 GMT 2026-04-21T11:31:55Z http://acikerisim.deu.edu.tr:8080/xmlui/bitstream/id/a7299339-3875-4784-8703-ed0ec5c08c1f/ http://hdl.handle.net/20.500.12397/13480