CONVERGENCE TEST FOR THE EXTENDED 3 - POINT SUPER CLASS OF BLOCK BACKWARD DIFFERENTIATION FORMULA FOR INTEGRATING STIFF IVP. FUDMA JOURNAL OF SCIENCES, [S. l.], v. 7, n. 4, p. 103–112, 2023. DOI: 10.33003/fjs-2023-0704-1906. Disponível em: https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/1906. Acesso em: 8 sep. 2025.