https://etd.repository.ugm.ac.id/penelitian/detail/1850492020never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1850502020never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1853472020never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1901732020never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1901912020never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1914932020never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1940492020never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1941252020never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1941352020never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1941402020never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1941522020never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1941592020never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1942352020never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1945422020never1.0