http://e-repository.perpus.iainsalatiga.ac.id/8599
http://e-repository.perpus.iainsalatiga.ac.id/8929
http://e-repository.perpus.iainsalatiga.ac.id/8047
http://e-repository.perpus.iainsalatiga.ac.id/9020
http://e-repository.perpus.iainsalatiga.ac.id/8377