http://e-repository.perpus.iainsalatiga.ac.id/12108
http://e-repository.perpus.iainsalatiga.ac.id/12035
http://e-repository.perpus.iainsalatiga.ac.id/11510
http://e-repository.perpus.iainsalatiga.ac.id/11486
http://e-repository.perpus.iainsalatiga.ac.id/10839
http://e-repository.perpus.iainsalatiga.ac.id/11671