Wylie, C. (1979). Diffrential Equations. McGraw-Hill.
Tohutoru Kātū Chicago (17th ed.)Wylie, Clarence. Diffrential Equations. Singapore: McGraw-Hill, 1979.
Tohutoro MLA (9th ed.)Wylie, Clarence. Diffrential Equations. McGraw-Hill, 1979.
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