Penelitian Operasional http://repository.unigal.ac.id:8080/handle/123456789/4030 Tue, 14 Jul 2026 00:47:13 GMT 2026-07-14T00:47:13Z Penelitian Operasional http://repository.unigal.ac.id:80/bitstream/id/dc7c306a-4448-4005-89ce-048fd5c3ec5b/ http://repository.unigal.ac.id:8080/handle/123456789/4030