http://e-repository.perpus.iainsalatiga.ac.id/17474
http://e-repository.perpus.iainsalatiga.ac.id/18387
http://e-repository.perpus.iainsalatiga.ac.id/18588
http://e-repository.perpus.iainsalatiga.ac.id/18242
http://e-repository.perpus.uinsalatiga.ac.id/id/eprint/17328