http://e-repository.perpus.iainsalatiga.ac.id/13866
http://e-repository.perpus.iainsalatiga.ac.id/14307
http://e-repository.perpus.iainsalatiga.ac.id/15502
http://e-repository.perpus.iainsalatiga.ac.id/16434
http://e-repository.perpus.iainsalatiga.ac.id/17589