Bird, R. (2009). Overcoming difficulties with number: Supporting dyscalculia and students who struggle with maths. SAGE.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBird, Ronit. Overcoming Difficulties with Number: Supporting Dyscalculia and Students Who Struggle with Maths. London: SAGE, 2009.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBird, Ronit. Overcoming Difficulties with Number: Supporting Dyscalculia and Students Who Struggle with Maths. SAGE, 2009.
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