Prosiding Semnas UGM 2018 http://repository.unigal.ac.id:8080/handle/123456789/2086 Tue, 04 Aug 2026 00:34:28 GMT 2026-08-04T00:34:28Z Prosiding Semnas UGM 2018 http://repository.unigal.ac.id:8080/bitstream/id/b9b77dff-91e1-48dd-833a-a460a8f0a0a5/ http://repository.unigal.ac.id:8080/handle/123456789/2086