DERIVATION OF 2-POINT ZERO STABLENUMERICAL ALGORITHM OF BLOCK BACKWARD DIFFERENTIATION FORMULA FOR SOLVING FIRST ORDER ORDINARY DIFFERENTIAL EQUATIONS. FJS [Internet]. 2021 Jul. 20 [cited 2025 Sep. 17];5(2):579-83. Available from: http://162.254.38.185/index.php/fjs/article/view/673