Zeller, D. (2012). Successful time management for dummies (Poratble Edition.). John Wiley & Sons.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रZeller, Dirk. Successful Time Management for Dummies. Poratble Edition. New Jersey: John Wiley & Sons, 2012.
एमएलए (9वां संस्करण) प्रशस्ति पत्रZeller, Dirk. Successful Time Management for Dummies. Poratble Edition. John Wiley & Sons, 2012.
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