http://e-repository.perpus.iainsalatiga.ac.id/10530
http://e-repository.perpus.iainsalatiga.ac.id/10164
http://e-repository.perpus.iainsalatiga.ac.id/10635
http://e-repository.perpus.iainsalatiga.ac.id/10887
http://e-repository.perpus.iainsalatiga.ac.id/10922