http://e-repository.perpus.iainsalatiga.ac.id/18988
http://e-repository.perpus.iainsalatiga.ac.id/12146
http://e-repository.perpus.iainsalatiga.ac.id/19394
http://e-repository.perpus.iainsalatiga.ac.id/19238
http://e-repository.perpus.iainsalatiga.ac.id/18647
http://e-repository.perpus.iainsalatiga.ac.id/18269