Krantz, S. G. (1997). Techniques of problem solving. American Mathematical Society.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKrantz, Steven George. Techniques of Problem Solving. Providence, RI: American Mathematical Society, 1997.
एमएलए (9वां संस्करण) प्रशस्ति पत्रKrantz, Steven George. Techniques of Problem Solving. American Mathematical Society, 1997.
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