Não informado. (2003). Attention and Performance. Massachusetts Institute of Technology.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Attention and Performance. Cambridge, Mass: Massachusetts Institute of Technology, 2003.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Attention and Performance. Massachusetts Institute of Technology, 2003.
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