http://e-repository.perpus.iainsalatiga.ac.id/15715
http://e-repository.perpus.iainsalatiga.ac.id/15656
http://e-repository.perpus.iainsalatiga.ac.id/17665
http://e-repository.perpus.iainsalatiga.ac.id/11694
http://e-repository.perpus.iainsalatiga.ac.id/17730
http://e-repository.perpus.iainsalatiga.ac.id/17464