http://e-repository.perpus.iainsalatiga.ac.id/9168
http://e-repository.perpus.iainsalatiga.ac.id/9181
http://e-repository.perpus.iainsalatiga.ac.id/9415
http://e-repository.perpus.iainsalatiga.ac.id/9316
http://e-repository.perpus.iainsalatiga.ac.id/9461