http://e-repository.perpus.iainsalatiga.ac.id/11299
http://e-repository.perpus.iainsalatiga.ac.id/11322
http://e-repository.perpus.iainsalatiga.ac.id/10443
http://e-repository.perpus.iainsalatiga.ac.id/10299
http://e-repository.perpus.iainsalatiga.ac.id/10427