http://e-repository.perpus.iainsalatiga.ac.id/19043
http://e-repository.perpus.iainsalatiga.ac.id/19010
http://e-repository.perpus.iainsalatiga.ac.id/19167
http://e-repository.perpus.iainsalatiga.ac.id/18242
http://e-repository.perpus.uinsalatiga.ac.id/id/eprint/17328