Ayres, F. (1987). Schaum's outline of theory and problems of differential equations in SI metric units. McGraw-Hill.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAyres, Frank. Schaum's Outline of Theory and Problems of Differential Equations in SI Metric Units. McGraw-Hill, 1987.
एमएलए (9वां संस्करण) प्रशस्ति पत्रAyres, Frank. Schaum's Outline of Theory and Problems of Differential Equations in SI Metric Units. McGraw-Hill, 1987.
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