http://e-repository.perpus.iainsalatiga.ac.id/8604
http://e-repository.perpus.iainsalatiga.ac.id/8857
http://e-repository.perpus.iainsalatiga.ac.id/9106
http://e-repository.perpus.iainsalatiga.ac.id/9119
http://e-repository.perpus.iainsalatiga.ac.id/9547