S. K. Sahoo, P. K. Kar, and K. Singh,"Upper-bound analysis of the extrusion of a bar of channel section from square/rectangular billets through square dies", Journal of Materials Processing Technology, vol.75, no.1-3, pp.75-80, Elsevier 1998, 10.1016/S0924-0136(97)00285-9       Article

S. K. Sahoo and P. K. Kar,"An Upper Bound Solution Using SERR Technique for Round-to-Square Drawing through Straightly Converging Dies", Transactions of Mech Engg, The Institution of Engineers ( Australia), vol.23, no.1, pp.39-41, The Institution of Engineers ( Australia), January 1998       Article

S. K. Sahoo, P. K. Kar, and K. Singh,"Three-dimensional analysis using SERR technique for extrusion of triangular section bars from square/rectangular billets through square dies", Journal of the Institution of Engineers (India), Part PR: Production Engineering Division, vol.78, no.2, pp.45-49, Institution of Engineers (India) 1997       Article

S. K. Sahoo, P. K. Kar, and P. K. Nayak,"Upper bound solution using SERR technique for extrusion of square section bars from square billets through the curved die", Journal of the Institution of Engineers (India): Mechanical Engineering Division, vol.78, no.3, pp.155-160, Institution of Engineers (India) 1997       Article

S. K. Sahoo, P. K. Kar, K. Singh, and S. Mohapatra,"Upper bound analysis of extrusion of hexagonal section bars from rectangular billets through the square dies", Journal of the Institution of Engineers (India): Mechanical Engineering Division, vol.77, pp.164-168, Institution of Engineers (India), November 1996       Article