NICHOLLS, A. (1999). Mastering public speaking: How to prepare and delivera successful speech or presentation. Grolier International.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNICHOLLS, Anne. Mastering Public Speaking: How to Prepare and Delivera Successful Speech or Presentation. Hongkong: Grolier International, 1999.
एमएलए (9वां संस्करण) प्रशस्ति पत्रNICHOLLS, Anne. Mastering Public Speaking: How to Prepare and Delivera Successful Speech or Presentation. Grolier International, 1999.
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