https://etd.repository.ugm.ac.id/penelitian/detail/339932007never1.0https://etd.repository.ugm.ac.id/penelitian/detail/339942007never1.0https://etd.repository.ugm.ac.id/penelitian/detail/339952007never1.0https://etd.repository.ugm.ac.id/penelitian/detail/348812007never1.0https://etd.repository.ugm.ac.id/penelitian/detail/348832007never1.0https://etd.repository.ugm.ac.id/penelitian/detail/348872007never1.0https://etd.repository.ugm.ac.id/penelitian/detail/360042007never1.0https://etd.repository.ugm.ac.id/penelitian/detail/360052007never1.0https://etd.repository.ugm.ac.id/penelitian/detail/360062007never1.0https://etd.repository.ugm.ac.id/penelitian/detail/360072007never1.0https://etd.repository.ugm.ac.id/penelitian/detail/360082007never1.0https://etd.repository.ugm.ac.id/penelitian/detail/360092007never1.0https://etd.repository.ugm.ac.id/penelitian/detail/360102007never1.0https://etd.repository.ugm.ac.id/penelitian/detail/360112007never1.0https://etd.repository.ugm.ac.id/penelitian/detail/360162007never1.0