Sinek, S. (2017). Start with why: How great leaders inspire everyone to take action (Unabridged.). Penguin Audio.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSinek, Simon. Start with Why: How Great Leaders Inspire Everyone to Take Action. Unabridged. New York: Penguin Audio, 2017.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSinek, Simon. Start with Why: How Great Leaders Inspire Everyone to Take Action. Unabridged. Penguin Audio, 2017.
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