http://e-repository.perpus.iainsalatiga.ac.id/17626
http://e-repository.perpus.iainsalatiga.ac.id/17287
http://e-repository.perpus.iainsalatiga.ac.id/18376
http://e-repository.perpus.iainsalatiga.ac.id/18527
http://e-repository.perpus.iainsalatiga.ac.id/19449