http://e-repository.perpus.iainsalatiga.ac.id/10876
http://e-repository.perpus.iainsalatiga.ac.id/11550
http://e-repository.perpus.iainsalatiga.ac.id/11486
http://e-repository.perpus.iainsalatiga.ac.id/11510
http://e-repository.perpus.iainsalatiga.ac.id/11671