https://etd.repository.ugm.ac.id/penelitian/detail/1824342020never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1830962020never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1850902020never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1857892020never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1867082020never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1875402020never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1904022020never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1909522020never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1911202020never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1920722020never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1920922020never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1921002020never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1921022020never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1940452020never1.0