http://e-repository.perpus.iainsalatiga.ac.id/10883
http://e-repository.perpus.iainsalatiga.ac.id/10861
http://e-repository.perpus.iainsalatiga.ac.id/10839
http://e-repository.perpus.iainsalatiga.ac.id/10802
http://e-repository.perpus.iainsalatiga.ac.id/10791