Não informado. (1976). Journal of Educational Statistics. American Educational Research Association.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Journal of Educational Statistics. Washington: American Educational Research Association, 1976.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Journal of Educational Statistics. American Educational Research Association, 1976.
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