title: nn
creator: nn, nn
subject:  
description: nn
date: 2012-01-24
type: Artikel
type: PeerReviewed
format: text
identifier: http://digilib.unila.ac.id/19882/1/bab%201-6.pdf
identifier:   nn, nn  (2012) nn.  Digital Library.       
relation: http://digilib.unila.ac.id/19882/