http://e-repository.perpus.iainsalatiga.ac.id/10299
http://e-repository.perpus.iainsalatiga.ac.id/10427
http://e-repository.perpus.iainsalatiga.ac.id/10413
http://e-repository.perpus.iainsalatiga.ac.id/10031
http://e-repository.perpus.iainsalatiga.ac.id/9349
http://e-repository.perpus.iainsalatiga.ac.id/9386