http://e-repository.perpus.iainsalatiga.ac.id/12959
http://e-repository.perpus.iainsalatiga.ac.id/14308
http://e-repository.perpus.iainsalatiga.ac.id/14398
http://e-repository.perpus.iainsalatiga.ac.id/14678
http://e-repository.perpus.iainsalatiga.ac.id/14697