Não informado. Science Teaching Ideas. National Science Teachers Association.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Science Teaching Ideas. Washington: National Science Teachers Association.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Science Teaching Ideas. National Science Teachers Association.
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