American Psychological Association. (2020). Publication manual of the American psychological association (Seventh edition.). American Psychological Association.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAmerican Psychological Association. Publication Manual of the American Psychological Association. Seventh edition. Washington, DC: American Psychological Association, 2020.
एमएलए (8वां संस्करण) प्रशस्ति पत्रAmerican Psychological Association. Publication Manual of the American Psychological Association. Seventh edition. American Psychological Association, 2020.
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