http://e-repository.perpus.iainsalatiga.ac.id/16259
http://e-repository.perpus.iainsalatiga.ac.id/15941
http://e-repository.perpus.iainsalatiga.ac.id/17621
http://e-repository.perpus.iainsalatiga.ac.id/17620
http://e-repository.perpus.iainsalatiga.ac.id/17270
http://e-repository.perpus.iainsalatiga.ac.id/17731