http://hdl.handle.net/20.500.12323/682 Thu, 09 Apr 2026 16:39:41 GMT 2026-04-09T16:39:41Z http://localhost:80/jspui/retrieve/57cc9170-c971-4766-84ae-f9ef0d83505b/KU_17.06.09.ppt http://hdl.handle.net/20.500.12323/682