http://e-repository.perpus.iainsalatiga.ac.id/11223
http://e-repository.perpus.iainsalatiga.ac.id/12184
http://e-repository.perpus.iainsalatiga.ac.id/12261
http://e-repository.perpus.iainsalatiga.ac.id/12214
http://e-repository.perpus.iainsalatiga.ac.id/12210