Ahsan, Z. (2004). Differential Equations and Their Applications (2nd ed.). PHI Learning.
Citace podle Chicago (17th ed.)Ahsan, Zafar. Differential Equations and Their Applications. 2nd ed. New Delhi: PHI Learning, 2004.
Citace podle MLA (9th ed.)Ahsan, Zafar. Differential Equations and Their Applications. 2nd ed. PHI Learning, 2004.
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