http://e-repository.perpus.iainsalatiga.ac.id/15670
http://e-repository.perpus.iainsalatiga.ac.id/14559
http://e-repository.perpus.iainsalatiga.ac.id/15393
http://e-repository.perpus.iainsalatiga.ac.id/15972
http://e-repository.perpus.iainsalatiga.ac.id/15502