CONVERGENCE TEST FOR THE EXTENDED 3 - POINT SUPER CLASS OF BLOCK BACKWARD DIFFERENTIATION FORMULA FOR INTEGRATING STIFF IVP. FJS [Internet]. 2023 Aug. 30 [cited 2025 Sep. 8];7(4):103-12. Available from: https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/1906