http://e-repository.perpus.iainsalatiga.ac.id/11377
http://e-repository.perpus.iainsalatiga.ac.id/9822
http://e-repository.perpus.iainsalatiga.ac.id/9442
http://e-repository.perpus.iainsalatiga.ac.id/9946
http://e-repository.perpus.iainsalatiga.ac.id/9261