Não informado. (2000). International journal of engineering. National Center for Scientific Research.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. International Journal of Engineering. Teheran: National Center for Scientific Research, 2000.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. International Journal of Engineering. National Center for Scientific Research, 2000.
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