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  1. Second-language acquisition - Wikipedia

  2. An Introduction to the Second Language Acquisition

  3. What is Second Language Acquisition (and why does it matter)?

  4. Second Language Acquisition - an overview - ScienceDirect

  5. Studies in Second Language Acquisition | Cambridge Core

  6. Introducing Second Language Acquisition - Cambridge …

  7. Theory of Second Language Acquisition | SpringerLink

  8. Second Language Learning - SpringerLink

  9. The Cambridge Handbook of Second Language Acquisition