http://e-repository.perpus.iainsalatiga.ac.id/9034
http://e-repository.perpus.iainsalatiga.ac.id/8858
http://e-repository.perpus.iainsalatiga.ac.id/8699
http://e-repository.perpus.iainsalatiga.ac.id/8688
http://e-repository.perpus.iainsalatiga.ac.id/8668