http://e-repository.perpus.iainsalatiga.ac.id/10922
http://e-repository.perpus.iainsalatiga.ac.id/9479
http://e-repository.perpus.iainsalatiga.ac.id/9506
http://e-repository.perpus.iainsalatiga.ac.id/10028
http://e-repository.perpus.iainsalatiga.ac.id/9576