http://e-repository.perpus.iainsalatiga.ac.id/11883
http://e-repository.perpus.iainsalatiga.ac.id/12225
http://e-repository.perpus.iainsalatiga.ac.id/12540
http://e-repository.perpus.iainsalatiga.ac.id/12730
http://e-repository.perpus.iainsalatiga.ac.id/13045