Hilbert, E. D. J. a. S. (1975). BARRON'S HOW TO PREPARE FOR THE GMAT (GRADUATE MANAGEMENT ADMINISSION TEST). Barron\'s Educational Series.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHilbert, Eugene D. Jaffe and Stephen. BARRON'S HOW TO PREPARE FOR THE GMAT (GRADUATE MANAGEMENT ADMINISSION TEST). Barron\'s Educational Series, 1975.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHilbert, Eugene D. Jaffe and Stephen. BARRON'S HOW TO PREPARE FOR THE GMAT (GRADUATE MANAGEMENT ADMINISSION TEST). Barron\'s Educational Series, 1975.
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