Prosiding Semnas UGM 2018 http://repository.unigal.ac.id:8080/handle/123456789/2085 Thu, 17 Sep 2026 09:45:11 GMT 2026-09-17T09:45:11Z Prosiding Semnas UGM 2018 http://repository.unigal.ac.id:80/bitstream/id/b1181081-5050-4b4f-be65-12f83088e705/ http://repository.unigal.ac.id:8080/handle/123456789/2085