http://e-repository.perpus.iainsalatiga.ac.id/9919
http://e-repository.perpus.iainsalatiga.ac.id/9551
http://e-repository.perpus.iainsalatiga.ac.id/9666
http://e-repository.perpus.iainsalatiga.ac.id/9497
http://e-repository.perpus.iainsalatiga.ac.id/8900