http://e-repository.perpus.iainsalatiga.ac.id/19499
http://e-repository.perpus.iainsalatiga.ac.id/19195
http://e-repository.perpus.iainsalatiga.ac.id/19505
http://e-repository.perpus.iainsalatiga.ac.id/19254
http://e-repository.perpus.iainsalatiga.ac.id/19643