http://e-repository.perpus.iainsalatiga.ac.id/17582
http://e-repository.perpus.iainsalatiga.ac.id/17661
http://e-repository.perpus.iainsalatiga.ac.id/17889
http://e-repository.perpus.iainsalatiga.ac.id/18151
http://e-repository.perpus.iainsalatiga.ac.id/18090
http://e-repository.perpus.iainsalatiga.ac.id/19030