Hart, G. B. (2017). Business Benchmark: Upper intermediatr. Student's Book. New York: Cambridge University Press; Cambridge English.
Chicago Stili AlıntıHart, Guy Brook. Business Benchmark: Upper Intermediatr. Student's Book. New York: Cambridge University Press; Cambridge English, 2017.
MLA AlıntıHart, Guy Brook. Business Benchmark: Upper Intermediatr. Student's Book. New York: Cambridge University Press; Cambridge English, 2017.
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