Cooper, W. (2020). Dark psychology and manipulation. Independently published.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCooper, William. Dark Psychology and Manipulation. Independently published, 2020.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCooper, William. Dark Psychology and Manipulation. Independently published, 2020.
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