Yahaya M, Abubakar A, Jikantoro YD. DEVELOPMENT OF A CONTINUOUS BACKWARD DIFFERENTIATION FORMULAE FOR SOLVING FIRST-ORDER AND SECOND-ORDER INITIAL VALUE PROBLEM . FJS [Internet]. 2025May28 [cited 2025Jun.6];9(5):14 -22. Available from: https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/3633