The Improved Operational Matrices of DP-Ball Polynomials for Solving Singular Second Order Linear Dirichlet-type Boundary Value Problems. HADHRAMOUT JOURNAL OF MEDICAL SCIENCES [انترنت]. 19 نوفمبر، 2023 [وثق 28 يوليو، 2026];19(1). موجود في: https://hu.edu.ye/hu-publications/journals/index.php/hujnas/article/view/22