http://e-repository.perpus.iainsalatiga.ac.id/17625
http://e-repository.perpus.iainsalatiga.ac.id/17778
http://e-repository.perpus.iainsalatiga.ac.id/19459
http://e-repository.perpus.iainsalatiga.ac.id/19178
http://e-repository.perpus.iainsalatiga.ac.id/18981
http://e-repository.perpus.iainsalatiga.ac.id/19057