ADEKOYA, O. M., A. O. AKINFENWA, and O. J. FENUGA. “BLOCK BACKWARD DIFFERENTIATION FORMULA FOR CONVECTIVE BOUNDARY CONDITION IN HYDROMAGNETIC HEAT AND MASS TRANSPORT OVER A VERTICAL PLATE”. Unilag Journal of Mathematics and Applications, Vol. 5, no. 2, Dec. 2025, pp. 45 -7, https://lagjma.unilag.edu.ng/article/view/2789.