https://etd.repository.ugm.ac.id/penelitian/detail/451052009never1.0https://etd.repository.ugm.ac.id/penelitian/detail/451062009never1.0https://etd.repository.ugm.ac.id/penelitian/detail/451072009never1.0https://etd.repository.ugm.ac.id/penelitian/detail/451082009never1.0https://etd.repository.ugm.ac.id/penelitian/detail/451092009never1.0https://etd.repository.ugm.ac.id/penelitian/detail/451102009never1.0https://etd.repository.ugm.ac.id/penelitian/detail/451112009never1.0https://etd.repository.ugm.ac.id/penelitian/detail/451122009never1.0https://etd.repository.ugm.ac.id/penelitian/detail/451132009never1.0https://etd.repository.ugm.ac.id/penelitian/detail/451142009never1.0https://etd.repository.ugm.ac.id/penelitian/detail/451152009never1.0https://etd.repository.ugm.ac.id/penelitian/detail/451162009never1.0https://etd.repository.ugm.ac.id/penelitian/detail/451172009never1.0https://etd.repository.ugm.ac.id/penelitian/detail/451182009never1.0https://etd.repository.ugm.ac.id/penelitian/detail/451192009never1.0https://etd.repository.ugm.ac.id/penelitian/detail/451202009never1.0https://etd.repository.ugm.ac.id/penelitian/detail/451212009never1.0