ZENGER JOHN H. (2002). EXTRAORDINARY LEADER: TURNING GOOD MANAGERS INTO G. TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रZENGER JOHN H. EXTRAORDINARY LEADER: TURNING GOOD MANAGERS INTO G. NEW DELHI: TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 2002.
एमएलए (9वां संस्करण) प्रशस्ति पत्रZENGER JOHN H. EXTRAORDINARY LEADER: TURNING GOOD MANAGERS INTO G. TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 2002.
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