http://e-repository.perpus.iainsalatiga.ac.id/10609
http://e-repository.perpus.iainsalatiga.ac.id/10625
http://e-repository.perpus.iainsalatiga.ac.id/10822
http://e-repository.perpus.iainsalatiga.ac.id/10916
http://e-repository.perpus.iainsalatiga.ac.id/11368