What does CEFR mean for self-employed teachers/freelancers? (Int. Sign)

Creative Commons-Licentie Marco Schwager, Ilja Khenkine, Julian Bleicken, Björn Pfeiffer, Ariane Gerber, Margit Hillenmeyer and Karolina Helmke, Hamburg University, November 2016, www.signteach.eu 

 

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