http://e-repository.perpus.iainsalatiga.ac.id/16346
http://e-repository.perpus.iainsalatiga.ac.id/15981
http://e-repository.perpus.iainsalatiga.ac.id/15983
http://e-repository.perpus.iainsalatiga.ac.id/15917
http://e-repository.perpus.iainsalatiga.ac.id/15889