http://e-repository.perpus.iainsalatiga.ac.id/9627
http://e-repository.perpus.iainsalatiga.ac.id/9895
http://e-repository.perpus.iainsalatiga.ac.id/9635
http://e-repository.perpus.iainsalatiga.ac.id/8656
http://e-repository.perpus.iainsalatiga.ac.id/8831