http://e-repository.perpus.iainsalatiga.ac.id/10861
http://e-repository.perpus.iainsalatiga.ac.id/11618
http://e-repository.perpus.iainsalatiga.ac.id/11671
http://e-repository.perpus.iainsalatiga.ac.id/11764
http://e-repository.perpus.iainsalatiga.ac.id/11510