QUADLING, D. (2016). Cambridge international As and A level Mathematics 1 course book. Cambridge University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रQUADLING, Douglas. Cambridge International As and A Level Mathematics 1 Course Book. Cambridge University Press, 2016.
एमएलए (9वां संस्करण) प्रशस्ति पत्रQUADLING, Douglas. Cambridge International As and A Level Mathematics 1 Course Book. Cambridge University Press, 2016.
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