Anjum, N. A., M. Z. Khan, M. Shah, M. S. Khalil, R. A. Pasha, F. Qayyum, and W. Anwar. “Shear Strain Model for Equal Channel Angular Pressing in High Elastic Extruded Plastics”. The Nucleus, vol. 52, no. 4, Dec. 2015, pp. 169-75, http://202.83.167.189/index.php/Nucleus/article/view/635.