http://e-repository.perpus.iainsalatiga.ac.id/10954
http://e-repository.perpus.iainsalatiga.ac.id/10822
http://e-repository.perpus.iainsalatiga.ac.id/9686
http://e-repository.perpus.iainsalatiga.ac.id/9691
http://e-repository.perpus.iainsalatiga.ac.id/9761