Kübler, S. (1991). Mapping the learner's world: Exploring students' perspectives on learning English as a foreign language. Zentralstelle der Studentenschaft.
Chicago-viite (17. p.)Kübler, Silvia. Mapping the Learner's World: Exploring Students' Perspectives on Learning English as a Foreign Language. Zürich: Zentralstelle der Studentenschaft, 1991.
MLA-viite (8. p.)Kübler, Silvia. Mapping the Learner's World: Exploring Students' Perspectives on Learning English as a Foreign Language. Zentralstelle der Studentenschaft, 1991.
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