http://e-repository.perpus.iainsalatiga.ac.id/9614
http://e-repository.perpus.iainsalatiga.ac.id/9419
http://e-repository.perpus.iainsalatiga.ac.id/9177
http://e-repository.perpus.iainsalatiga.ac.id/9259
http://e-repository.perpus.iainsalatiga.ac.id/9227