https://etd.repository.ugm.ac.id/penelitian/detail/169052000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/169062000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/169072000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/169082000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/169322000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/169362000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/169532000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/169742000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/169802000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/170362000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/170412000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/171432000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/171442000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/171452000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/171462000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/171822000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/174082000never1.0