American, P. A. (2002). Publication Manual of the American Psychological Association. Pustaka sinar harapan.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAmerican, Psychological Association. Publication Manual of the American Psychological Association. Pustaka sinar harapan, 2002.
एमएलए (9वां संस्करण) प्रशस्ति पत्रAmerican, Psychological Association. Publication Manual of the American Psychological Association. Pustaka sinar harapan, 2002.
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