http://e-repository.perpus.iainsalatiga.ac.id/14944
http://e-repository.perpus.iainsalatiga.ac.id/14877
http://e-repository.perpus.iainsalatiga.ac.id/15893
http://e-repository.perpus.iainsalatiga.ac.id/14091
http://e-repository.perpus.iainsalatiga.ac.id/13351