http://e-repository.perpus.iainsalatiga.ac.id/11473
http://e-repository.perpus.iainsalatiga.ac.id/11573
http://e-repository.perpus.iainsalatiga.ac.id/11166
http://e-repository.perpus.iainsalatiga.ac.id/12171
http://e-repository.perpus.iainsalatiga.ac.id/11896
http://e-repository.perpus.iainsalatiga.ac.id/11958