http://e-repository.perpus.iainsalatiga.ac.id/9081
http://e-repository.perpus.iainsalatiga.ac.id/9102
http://e-repository.perpus.iainsalatiga.ac.id/13409
http://e-repository.perpus.iainsalatiga.ac.id/12816
http://e-repository.perpus.iainsalatiga.ac.id/12771