Pile, L. (2005). Market leader: Intermediate business English test file (2a. ed.). Pearson Education Limited.
Chicago Style (17. basım) AtıfPile, Louise. Market Leader: Intermediate Business English Test File. 2a. ed. Essex: Pearson Education Limited, 2005.
MLA (9th ed.) AtıfPile, Louise. Market Leader: Intermediate Business English Test File. 2a. ed. Pearson Education Limited, 2005.
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