https://etd.repository.ugm.ac.id/penelitian/detail/188172002never1.0https://etd.repository.ugm.ac.id/penelitian/detail/191532002never1.0https://etd.repository.ugm.ac.id/penelitian/detail/197912002never1.0https://etd.repository.ugm.ac.id/penelitian/detail/201382002never1.0https://etd.repository.ugm.ac.id/penelitian/detail/201892002never1.0https://etd.repository.ugm.ac.id/penelitian/detail/202332002never1.0https://etd.repository.ugm.ac.id/penelitian/detail/203542002never1.0https://etd.repository.ugm.ac.id/penelitian/detail/204092002never1.0https://etd.repository.ugm.ac.id/penelitian/detail/204492002never1.0https://etd.repository.ugm.ac.id/penelitian/detail/204502002never1.0https://etd.repository.ugm.ac.id/penelitian/detail/204562002never1.0https://etd.repository.ugm.ac.id/penelitian/detail/204942002never1.0https://etd.repository.ugm.ac.id/penelitian/detail/205122002never1.0https://etd.repository.ugm.ac.id/penelitian/detail/205762002never1.0