http://e-repository.perpus.iainsalatiga.ac.id/13642
http://e-repository.perpus.iainsalatiga.ac.id/13526
http://e-repository.perpus.iainsalatiga.ac.id/13429
http://e-repository.perpus.iainsalatiga.ac.id/12974
http://e-repository.perpus.iainsalatiga.ac.id/13035