http://e-repository.perpus.iainsalatiga.ac.id/19310
http://e-repository.perpus.iainsalatiga.ac.id/18949
http://e-repository.perpus.iainsalatiga.ac.id/19034
http://e-repository.perpus.iainsalatiga.ac.id/18819
http://e-repository.perpus.iainsalatiga.ac.id/19624