http://e-repository.perpus.iainsalatiga.ac.id/10029
http://e-repository.perpus.iainsalatiga.ac.id/9272
http://e-repository.perpus.iainsalatiga.ac.id/9919
http://e-repository.perpus.iainsalatiga.ac.id/9499
http://e-repository.perpus.iainsalatiga.ac.id/10073