E. Omole, A. A. Aigbiremhon, and A. F. Familua, “A THREE-STEP INTERPOLATION TECHNIQUE WITH PERTURBATION TERM FOR DIRECT SOLUTION OF THIRD-ORDER ORDINARY DIFFERENTIAL EQUATIONS”, FJS, vol. 5, no. 2, pp. 365–376, Jul. 2021, doi: 10.33003/fjs-2021-0502-556.