Não informado. (2004). Teaching thinking & problem solving. Research for Better Schools.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Teaching Thinking & Problem Solving. Philadelphia, Pa: Research for Better Schools, 2004.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Teaching Thinking & Problem Solving. Research for Better Schools, 2004.
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