http://e-repository.perpus.iainsalatiga.ac.id/9736
http://e-repository.perpus.iainsalatiga.ac.id/10368
http://e-repository.perpus.iainsalatiga.ac.id/10365
http://e-repository.perpus.iainsalatiga.ac.id/10731
http://e-repository.perpus.iainsalatiga.ac.id/11072