http://e-repository.perpus.iainsalatiga.ac.id/14579
http://e-repository.perpus.iainsalatiga.ac.id/11577
http://e-repository.perpus.iainsalatiga.ac.id/14277
http://e-repository.perpus.iainsalatiga.ac.id/13789
http://e-repository.perpus.iainsalatiga.ac.id/15600