http://e-repository.perpus.iainsalatiga.ac.id/15981
http://e-repository.perpus.iainsalatiga.ac.id/15979
http://e-repository.perpus.iainsalatiga.ac.id/11996
http://e-repository.perpus.iainsalatiga.ac.id/13301
http://e-repository.perpus.iainsalatiga.ac.id/17386