Ahsan, Z. (1999). Differential equations and their applications. Prentice Hall of India.
Παραπομπή Chicago StyleAhsan, Zafar. Differential Equations and Their Applications. New Delhi: Prentice Hall of India, 1999.
Παραπομπή MLAAhsan, Zafar. Differential Equations and Their Applications. Prentice Hall of India, 1999.
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