http://e-repository.perpus.iainsalatiga.ac.id/15985
http://e-repository.perpus.iainsalatiga.ac.id/15962
http://e-repository.perpus.iainsalatiga.ac.id/15961
http://e-repository.perpus.iainsalatiga.ac.id/15901
http://e-repository.perpus.iainsalatiga.ac.id/15889