Ahsan, Z. (2001). Differential equations and their applications. Prentice-Hall.
Cita Chicago (17th ed.)Ahsan, Zafar. Differential Equations and Their Applications. New Delhi: Prentice-Hall, 2001.
Cita MLA (9th ed.)Ahsan, Zafar. Differential Equations and Their Applications. Prentice-Hall, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.