https://etd.repository.ugm.ac.id/penelitian/detail/771182014never1.0https://etd.repository.ugm.ac.id/penelitian/detail/771362014never1.0https://etd.repository.ugm.ac.id/penelitian/detail/771382014never1.0https://etd.repository.ugm.ac.id/penelitian/detail/771392014never1.0https://etd.repository.ugm.ac.id/penelitian/detail/771562014never1.0https://etd.repository.ugm.ac.id/penelitian/detail/774862014never1.0https://etd.repository.ugm.ac.id/penelitian/detail/774872014never1.0https://etd.repository.ugm.ac.id/penelitian/detail/775152014never1.0https://etd.repository.ugm.ac.id/penelitian/detail/775482014never1.0https://etd.repository.ugm.ac.id/penelitian/detail/775492014never1.0https://etd.repository.ugm.ac.id/penelitian/detail/775702014never1.0https://etd.repository.ugm.ac.id/penelitian/detail/775802014never1.0https://etd.repository.ugm.ac.id/penelitian/detail/775942014never1.0https://etd.repository.ugm.ac.id/penelitian/detail/775992014never1.0https://etd.repository.ugm.ac.id/penelitian/detail/776122014never1.0https://etd.repository.ugm.ac.id/penelitian/detail/776162014never1.0https://etd.repository.ugm.ac.id/penelitian/detail/776262014never1.0