http://e-repository.perpus.iainsalatiga.ac.id/9462
http://e-repository.perpus.iainsalatiga.ac.id/9299
http://e-repository.perpus.iainsalatiga.ac.id/9708
http://e-repository.perpus.iainsalatiga.ac.id/9887
http://e-repository.perpus.iainsalatiga.ac.id/9938