Rao, K. S. (1995). Introduction to partial differential equations (6th ed.). Prentice-Hall of India.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRao, K. Sankara. Introduction to Partial Differential Equations. 6th ed. New Delhi: Prentice-Hall of India, 1995.
एमएलए (8वां संस्करण) प्रशस्ति पत्रRao, K. Sankara. Introduction to Partial Differential Equations. 6th ed. Prentice-Hall of India, 1995.
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