S. O. Imoni, D. I. Lanlege, E. M. Atteh, and J. O. Ogbondeminu, “FORMULATION OF BLOCK SCHEMES WITH LINEAR MULTISTEP METHOD FOR THE APPROXIMATION OF FIRST-ORDER IVPS”, FJS, vol. 4, no. 3, pp. 313–322, Sep. 2020, doi: 10.33003/fjs-2020-0403-260.