http://e-repository.perpus.iainsalatiga.ac.id/10699
http://e-repository.perpus.iainsalatiga.ac.id/13016
http://e-repository.perpus.iainsalatiga.ac.id/13012
http://e-repository.perpus.iainsalatiga.ac.id/13009
http://e-repository.perpus.iainsalatiga.ac.id/13610