ELLIS, P. (2016). Understanding research for nursing students. SAGE.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रELLIS, Peter. Understanding Research for Nursing Students. SAGE, 2016.
एमएलए (9वां संस्करण) प्रशस्ति पत्रELLIS, Peter. Understanding Research for Nursing Students. SAGE, 2016.
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