http://e-repository.perpus.iainsalatiga.ac.id/16168
http://e-repository.perpus.iainsalatiga.ac.id/15903
http://e-repository.perpus.iainsalatiga.ac.id/16920
http://e-repository.perpus.iainsalatiga.ac.id/17835
http://e-repository.perpus.uinsalatiga.ac.id/id/eprint/17522