https://etd.repository.ugm.ac.id/penelitian/detail/191332002never1.0https://etd.repository.ugm.ac.id/penelitian/detail/191342002never1.0https://etd.repository.ugm.ac.id/penelitian/detail/191352002never1.0https://etd.repository.ugm.ac.id/penelitian/detail/191362002never1.0https://etd.repository.ugm.ac.id/penelitian/detail/191372002never1.0https://etd.repository.ugm.ac.id/penelitian/detail/191382002never1.0https://etd.repository.ugm.ac.id/penelitian/detail/197362002never1.0https://etd.repository.ugm.ac.id/penelitian/detail/197372002never1.0https://etd.repository.ugm.ac.id/penelitian/detail/197382002never1.0https://etd.repository.ugm.ac.id/penelitian/detail/197922002never1.0https://etd.repository.ugm.ac.id/penelitian/detail/204052002never1.0https://etd.repository.ugm.ac.id/penelitian/detail/204062002never1.0https://etd.repository.ugm.ac.id/penelitian/detail/205292002never1.0https://etd.repository.ugm.ac.id/penelitian/detail/205902002never1.0