OmoleE., AigbiremhonA. A., and FamiluaA. F. “A THREE-STEP INTERPOLATION TECHNIQUE WITH PERTURBATION TERM FOR DIRECT SOLUTION OF THIRD-ORDER ORDINARY DIFFERENTIAL EQUATIONS”. FUDMA JOURNAL OF SCIENCES, Vol. 5, no. 2, July 2021, pp. 365 -76, doi:10.33003/fjs-2021-0502-556.