http://e-repository.perpus.iainsalatiga.ac.id/8720
http://e-repository.perpus.iainsalatiga.ac.id/8843
http://e-repository.perpus.iainsalatiga.ac.id/9304
http://e-repository.perpus.iainsalatiga.ac.id/9560
http://e-repository.perpus.iainsalatiga.ac.id/9641