http://e-repository.perpus.iainsalatiga.ac.id/13614
http://e-repository.perpus.iainsalatiga.ac.id/14004
http://e-repository.perpus.iainsalatiga.ac.id/11302
http://e-repository.perpus.iainsalatiga.ac.id/13609
http://e-repository.perpus.iainsalatiga.ac.id/13960