http://e-repository.perpus.iainsalatiga.ac.id/8687
http://e-repository.perpus.iainsalatiga.ac.id/9759
http://e-repository.perpus.iainsalatiga.ac.id/9826
http://e-repository.perpus.iainsalatiga.ac.id/9427
http://e-repository.perpus.iainsalatiga.ac.id/9708