Alim, M. A. A., et al. “Joule Heating Effect on the Coupling of Conduction With Magnetohydrodynamic Free Convection Flow from a Vertical Flat Plate”. Nonlinear Analysis: Modelling and Control, vol. 12, no. 3, July 2007, pp. 307-16, https://doi.org/10.15388/NA.2007.12.3.14688.