Não informado. (2012). Communicator. National Association of Elementary School Principals.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Communicator. Alexandria, Va: National Association of Elementary School Principals, 2012.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Communicator. National Association of Elementary School Principals, 2012.
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