Hauta-Aho, S. (2013). IB upper secondary school and national upper secondary school students' attitudes towards English oral skills: A comparative study.
Chicago-viite (17. p.)Hauta-Aho, Sanna. IB Upper Secondary School and National Upper Secondary School Students' Attitudes Towards English Oral Skills: A Comparative Study. Jyväskylä, 2013.
MLA-viite (9. p.)Hauta-Aho, Sanna. IB Upper Secondary School and National Upper Secondary School Students' Attitudes Towards English Oral Skills: A Comparative Study. 2013.
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