Rüdiger Grotjahn · 8 obras en el catálogoObrasDDer C-TestDer C-TestHexameter studiesDDer C-testDer C-testSSprachlehrforschungSprachlehrforschungDDer C-TestDer C-TestCC-Test - Theorie, Empirie, AnwendungenC-Test - Theorie, Empirie, AnwendungenTTaking their measureTaking their measureUUniversity language testing and the C-testUniversity language testing and the C-test