Underhill, N. (1992). Testing Spoken Language: A Handbook of Oral Testing Techniques. Cambridge: Cambridge University.
Chicago Stili AlıntıUnderhill, Nic. Testing Spoken Language: A Handbook of Oral Testing Techniques. Cambridge: Cambridge University, 1992.
MLA AlıntıUnderhill, Nic. Testing Spoken Language: A Handbook of Oral Testing Techniques. Cambridge: Cambridge University, 1992.
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