https://etd.repository.ugm.ac.id/penelitian/detail/1199282005never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1199902005never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1200142005never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1200152005never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1200172005never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1200192005never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1200202005never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1200222005never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1200242005never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1200262005never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1200272005never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1200522005never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1205672005never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1205712005never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1207102005never1.0