Jaffe, E. D. Barron`s GMAT (Graduate Management Admission Test ) (15th.).
Chicago-čujuhus (17. p.)Jaffe, Eugene D. Barron`s GMAT (Graduate Management Admission Test ). 15th. New Delhi.
MLA-čujuhus (9. p.)Jaffe, Eugene D. Barron`s GMAT (Graduate Management Admission Test ). 15th.
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