http://e-repository.perpus.iainsalatiga.ac.id/8795
http://e-repository.perpus.iainsalatiga.ac.id/9292
http://e-repository.perpus.iainsalatiga.ac.id/9598
http://e-repository.perpus.iainsalatiga.ac.id/9596
http://e-repository.perpus.iainsalatiga.ac.id/9487