Toppo, G. (2015). The game believes in you: How digital play can make our kids smarter (First edition.). Palgrave Macmillan.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रToppo, Greg. The Game Believes in You: How Digital Play Can Make Our Kids Smarter. First edition. New York, NY: Palgrave Macmillan, 2015.
एमएलए (8वां संस्करण) प्रशस्ति पत्रToppo, Greg. The Game Believes in You: How Digital Play Can Make Our Kids Smarter. First edition. Palgrave Macmillan, 2015.
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