https://etd.repository.ugm.ac.id/penelitian/detail/787182015never1.0https://etd.repository.ugm.ac.id/penelitian/detail/794532015never1.0https://etd.repository.ugm.ac.id/penelitian/detail/796172015never1.0https://etd.repository.ugm.ac.id/penelitian/detail/796622015never1.0https://etd.repository.ugm.ac.id/penelitian/detail/807052015never1.0https://etd.repository.ugm.ac.id/penelitian/detail/807072015never1.0https://etd.repository.ugm.ac.id/penelitian/detail/818842015never1.0https://etd.repository.ugm.ac.id/penelitian/detail/819372015never1.0https://etd.repository.ugm.ac.id/penelitian/detail/819632015never1.0https://etd.repository.ugm.ac.id/penelitian/detail/820392015never1.0https://etd.repository.ugm.ac.id/penelitian/detail/833392015never1.0https://etd.repository.ugm.ac.id/penelitian/detail/834582015never1.0https://etd.repository.ugm.ac.id/penelitian/detail/852662015never1.0https://etd.repository.ugm.ac.id/penelitian/detail/858662015never1.0https://etd.repository.ugm.ac.id/penelitian/detail/860372015never1.0https://etd.repository.ugm.ac.id/penelitian/detail/864012015never1.0https://etd.repository.ugm.ac.id/penelitian/detail/877282015never1.0https://etd.repository.ugm.ac.id/penelitian/detail/882922015never1.0https://etd.repository.ugm.ac.id/penelitian/detail/916092015never1.0