http://e-repository.perpus.iainsalatiga.ac.id/9595
http://e-repository.perpus.iainsalatiga.ac.id/9643
http://e-repository.perpus.iainsalatiga.ac.id/11093
http://e-repository.perpus.iainsalatiga.ac.id/10922
http://e-repository.perpus.iainsalatiga.ac.id/10963