Prosiding Semnas UGM 2018 http://repository.unigal.ac.id:8080/handle/123456789/2086 Mon, 14 Sep 2026 00:39:30 GMT 2026-09-14T00:39:30Z 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