http://e-repository.perpus.iainsalatiga.ac.id/10410
http://e-repository.perpus.iainsalatiga.ac.id/10922
http://e-repository.perpus.iainsalatiga.ac.id/11314
http://e-repository.perpus.iainsalatiga.ac.id/11093
http://e-repository.perpus.iainsalatiga.ac.id/10963