Razeghi, A. (2008). The riddle: Where ideas come from and how to have better ones. Jossey-Bass.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRazeghi, Andrew. The Riddle: Where Ideas Come from and How to Have Better Ones. San Francisco: Jossey-Bass, 2008.
एमएलए (9वां संस्करण) प्रशस्ति पत्रRazeghi, Andrew. The Riddle: Where Ideas Come from and How to Have Better Ones. Jossey-Bass, 2008.
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