https://etd.repository.ugm.ac.id/penelitian/detail/421062009never1.0https://etd.repository.ugm.ac.id/penelitian/detail/421072009never1.0https://etd.repository.ugm.ac.id/penelitian/detail/421082009never1.0https://etd.repository.ugm.ac.id/penelitian/detail/421092009never1.0https://etd.repository.ugm.ac.id/penelitian/detail/421102009never1.0https://etd.repository.ugm.ac.id/penelitian/detail/421112009never1.0https://etd.repository.ugm.ac.id/penelitian/detail/421122009never1.0https://etd.repository.ugm.ac.id/penelitian/detail/430712009never1.0https://etd.repository.ugm.ac.id/penelitian/detail/430722009never1.0https://etd.repository.ugm.ac.id/penelitian/detail/430732009never1.0https://etd.repository.ugm.ac.id/penelitian/detail/430742009never1.0https://etd.repository.ugm.ac.id/penelitian/detail/430752009never1.0https://etd.repository.ugm.ac.id/penelitian/detail/430762009never1.0https://etd.repository.ugm.ac.id/penelitian/detail/430772009never1.0https://etd.repository.ugm.ac.id/penelitian/detail/430782009never1.0https://etd.repository.ugm.ac.id/penelitian/detail/430792009never1.0https://etd.repository.ugm.ac.id/penelitian/detail/447972009never1.0