Não informado. (1987). IEEE Network. Institute of Electrical and Electronics Engineers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. IEEE Network. New York: Institute of Electrical and Electronics Engineers, 1987.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. IEEE Network. Institute of Electrical and Electronics Engineers, 1987.
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