ADEKOYA, O. M.; AKINFENWA, A. O.; FENUGA, O. J. BLOCK BACKWARD DIFFERENTIATION FORMULA FOR CONVECTIVE BOUNDARY CONDITION IN HYDROMAGNETIC HEAT AND MASS TRANSPORT OVER A VERTICAL PLATE. Unilag Journal of Mathematics and Applications, v. 5, n. 2, p. 45 - 57, 29 Dec. 2025.