http://e-repository.perpus.iainsalatiga.ac.id/10861
http://e-repository.perpus.iainsalatiga.ac.id/10791
http://e-repository.perpus.iainsalatiga.ac.id/10802
http://e-repository.perpus.iainsalatiga.ac.id/11497
http://e-repository.perpus.iainsalatiga.ac.id/12006