Prosiding Semnas UGM 2018 http://repository.unigal.ac.id:8080/handle/123456789/2085 Fri, 24 Apr 2026 22:21:33 GMT 2026-04-24T22:21:33Z Prosiding Semnas UGM 2018 http://repository.unigal.ac.id:8080/bitstream/id/b1181081-5050-4b4f-be65-12f83088e705/ http://repository.unigal.ac.id:8080/handle/123456789/2085