"Russell, J. G. (2022). Cambridge International AS & A Level Psychology Coursebook with Digital Access (2 Years) (2.). Cambridge University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र"Russell, Julia; Gauntlett. Cambridge International AS & A Level Psychology Coursebook with Digital Access (2 Years). 2. Cambridge University Press, 2022.
एमएलए (9वां संस्करण) प्रशस्ति पत्र"Russell, Julia; Gauntlett. Cambridge International AS & A Level Psychology Coursebook with Digital Access (2 Years). 2. Cambridge University Press, 2022.
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