https://etd.repository.ugm.ac.id/penelitian/detail/665072014never1.0https://etd.repository.ugm.ac.id/penelitian/detail/679622014never1.0https://etd.repository.ugm.ac.id/penelitian/detail/687062014never1.0https://etd.repository.ugm.ac.id/penelitian/detail/690652014never1.0https://etd.repository.ugm.ac.id/penelitian/detail/690662014never1.0https://etd.repository.ugm.ac.id/penelitian/detail/691032014never1.0https://etd.repository.ugm.ac.id/penelitian/detail/692142014never1.0https://etd.repository.ugm.ac.id/penelitian/detail/704302014never1.0https://etd.repository.ugm.ac.id/penelitian/detail/706812014never1.0https://etd.repository.ugm.ac.id/penelitian/detail/707992014never1.0https://etd.repository.ugm.ac.id/penelitian/detail/746562014never1.0https://etd.repository.ugm.ac.id/penelitian/detail/753052014never1.0https://etd.repository.ugm.ac.id/penelitian/detail/776092014never1.0https://etd.repository.ugm.ac.id/penelitian/detail/778452014never1.0https://etd.repository.ugm.ac.id/penelitian/detail/778902014never1.0https://etd.repository.ugm.ac.id/penelitian/detail/779492014never1.0