http://e-repository.perpus.iainsalatiga.ac.id/14212
http://e-repository.perpus.iainsalatiga.ac.id/13511
http://e-repository.perpus.iainsalatiga.ac.id/12182
http://e-repository.perpus.iainsalatiga.ac.id/12540
http://e-repository.perpus.iainsalatiga.ac.id/12222