E inoltre ….
QCER Common European Framework of Reference for Languages
https://www.ecml.at/ECML-Programme/Programme2012-2015/ProSign/tabid/1752/Default.aspx
Rivista Lezioni sul Sofà
QCER Common European Framework of Reference for Languages
https://www.ecml.at/ECML-Programme/Programme2012-2015/ProSign/tabid/1752/Default.aspx
Rivista Lezioni sul Sofà