http://e-repository.perpus.iainsalatiga.ac.id/9434
http://e-repository.perpus.iainsalatiga.ac.id/10179
http://e-repository.perpus.iainsalatiga.ac.id/10550
http://e-repository.perpus.iainsalatiga.ac.id/10558
http://e-repository.perpus.iainsalatiga.ac.id/9686