Goleman, D. (2013). Focus: The hidden driver of excellence (Unabridged.). Harper Audio.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGoleman, Daniel. Focus: The Hidden Driver of Excellence. Unabridged. [United States]: Harper Audio, 2013.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGoleman, Daniel. Focus: The Hidden Driver of Excellence. Unabridged. Harper Audio, 2013.
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