http://repository.unigal.ac.id:8080/handle/123456789/443 Tue, 14 Jul 2026 04:20:20 GMT 2026-07-14T04:20:20Z http://repository.unigal.ac.id:8080/handle/123456789/444 Naskah Buku Manajemen Operasi Tue, 20 Feb 2018 00:00:00 GMT http://repository.unigal.ac.id:8080/handle/123456789/444 2018-02-20T00:00:00Z