http://e-repository.perpus.iainsalatiga.ac.id/19211
http://e-repository.perpus.iainsalatiga.ac.id/19164
http://e-repository.perpus.iainsalatiga.ac.id/18419
http://e-repository.perpus.iainsalatiga.ac.id/19289
http://e-repository.perpus.iainsalatiga.ac.id/19142
http://e-repository.perpus.iainsalatiga.ac.id/18571