http://e-repository.perpus.iainsalatiga.ac.id/19167
http://e-repository.perpus.iainsalatiga.ac.id/19010
http://e-repository.perpus.iainsalatiga.ac.id/19194
http://e-repository.perpus.iainsalatiga.ac.id/19043
http://e-repository.perpus.iainsalatiga.ac.id/20063