title: nn creator: nn, nn subject: description: nn date: 2012-01-21 type: Artikel type: PeerReviewed format: text identifier: http://digilib.unila.ac.id/18981/1/kesimpulan.pdf format: text identifier: http://digilib.unila.ac.id/18981/2/pendahuluan.pdf identifier: nn, nn (2012) nn. Digital Library. relation: http://digilib.unila.ac.id/18981/