Differential equations and their applications /
Ahsan, Zafar
Differential equations and their applications / Zafar Ahsan - 1st ed. - New Jersey : Prentice-Hall of India Pvt. Ltd., c2001.
Differential equations and their applications / Zafar Ahsan - 1st ed. - New Jersey : Prentice-Hall of India Pvt. Ltd., c2001.