Morgan, D. L. (1997). Focus groups as qualitative research (2nd edition.). Sage Publications.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMorgan, David L. Focus Groups as Qualitative Research. 2nd edition. Thousand Oaks, California: Sage Publications, 1997.
एमएलए (9वां संस्करण) प्रशस्ति पत्रMorgan, David L. Focus Groups as Qualitative Research. 2nd edition. Sage Publications, 1997.
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