Ahmed Kherd, Azizan Saaban, Ibrahim Eskander Ibrahim Fadhel. Wang-Ball Polynomials for the Numerical Solution of Singular Ordinary Differential Equations. eijs [Internet]. 2021Mar.30 [cited 2021Aug.15];62(3):941-9. Available from: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/1946