http://e-repository.perpus.iainsalatiga.ac.id/17400
http://e-repository.perpus.iainsalatiga.ac.id/17580
http://e-repository.perpus.iainsalatiga.ac.id/17444
http://e-repository.perpus.iainsalatiga.ac.id/17126
http://e-repository.perpus.iainsalatiga.ac.id/17056