Gardiner, T. (2016). Teaching mathematics at secondary level. Open Book Publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGardiner, Tony. Teaching Mathematics at Secondary Level. Cambridge, UK: Open Book Publishers, 2016.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGardiner, Tony. Teaching Mathematics at Secondary Level. Open Book Publishers, 2016.
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