Constructive and computational methods for differential and integral equations :

Elements Of Ordinary Differential Equations - Series In Pure And Applied.. Book1

Integral Equations Via Imbedding Methods; Applied Mathematics and Computation; N

Nonlinear Ordinary Differential Equations - Oxford applied mathematics and comp

SMP Further Mathematics Series Differential Equations and Circuits

Lectures on Cauchy's Problem in Linear Partial Differential Equations

Lectures on Ordinary Differential Equations by Witold Hurewicz (English) Paperba

Partial Differential Equations. Lectures in Applied Mathematics, 3 Bers, Lipman,