http://e-repository.perpus.iainsalatiga.ac.id/15296
http://e-repository.perpus.iainsalatiga.ac.id/15048
http://e-repository.perpus.iainsalatiga.ac.id/15352
http://e-repository.perpus.iainsalatiga.ac.id/15626
http://e-repository.perpus.iainsalatiga.ac.id/15379