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Swan & Smith Learner English : Free Download, Borrow, and Streaming : Internet Archive,

Amazon.com: Learner English: A Teacher's Guide to Interference and Other Problems (Cambridge Handbooks for Language Teachers): 8601400003701: Swan, Michael, Smith, Bernard: Books,

Amazon.com: Learner English: A Teacher's Guide to Interference and Other Problems (Cambridge Handbooks for Language Teachers): 8601400003701: Swan, Michael, Smith, Bernard: Books,

Learner English: A Teacher's Guide to Interference and other Problems (Cambridge Handbooks for Language Teachers) by Swan, Michael, Smith, Bernard