title: nn creator: nn, nn subject: description: nn date: 2012-01-22 type: Artikel type: PeerReviewed format: text identifier: http://digilib.unila.ac.id/19208/1/abstrak.pdf format: text identifier: http://digilib.unila.ac.id/19208/2/kesimpulan.pdf format: text identifier: http://digilib.unila.ac.id/19208/3/pendahuluan.pdf identifier: nn, nn (2012) nn. digital lebrary. relation: http://digilib.unila.ac.id/19208/