http://repository.unmul.ac.id/handle/123456789/56888 BUKU Thu, 22 Oct 2026 15:15:38 GMT 2026-10-22T15:15:38Z https://repository.unmul.ac.id:443/jspui/retrieve/16457c63-14b6-4eb9-9681-a18b7ceb0d92/ http://repository.unmul.ac.id/handle/123456789/56888