Aurangzaib, M., S. M. Murshid, and S. A. Urooj. 2014. “Heat and Mass Transfer Over an Unsteady Stretching Permeable Surface With Non-Uniform Heat Source/Sink and Thermal Radiation”. The Nucleus 51 (4):411-17. http://202.83.167.189/index.php/Nucleus/article/view/668.