Não informado. (2007). Teachers college bulletin. Columbia University, Teachers College.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Teachers College Bulletin. New York: Columbia University, Teachers College, 2007.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Teachers College Bulletin. Columbia University, Teachers College, 2007.
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