http://e-repository.perpus.iainsalatiga.ac.id/14354
http://e-repository.perpus.iainsalatiga.ac.id/13511
http://e-repository.perpus.iainsalatiga.ac.id/13701
http://e-repository.perpus.iainsalatiga.ac.id/13660
http://e-repository.perpus.iainsalatiga.ac.id/14150