Sh. Yousefzadeh, M. Kashfi, P. Kahhal, Abbas Ansari Asl , An Experimental Investigation on Tensile and Impact Properties of Bagasse/Polypropylene Natural Composite, Amirkabir (Journal of Science and Technology), May 2019 (In Persian).

Sh. Yousefzadeh, P. Kahhal, M. Kashfi, Experimental study of mechanical properties and morphology of partsmade by lost foam casting for A356-Alloy, Iranian Journal of Manufacturing Engineering, Vol. 6, No. 1, pp. 42-52, 2019 (In Persian).

P. Kahhal, S.Y. Ahmadi-Brooghani, H. Deilami Azodi, Investigation Of Drawing Bead Parameters and Multi-Objective Optimization in Deep Drawing Process, Aerospace Mechanics Journal 13, 21-31, 2017 (In Persian).

M. Kashfi, D. Bakhtiyari, A. Ghavamian, M. Kashfi, P. Kahhal, A Numerical-Experimental Investigation on Spring Back in Rectangular Section Thin Wall Hollows and Extracting a Relation to Estimate Twisted Angle by Considering Strain-Hardening Behaviour, Iranian Journal of Manufacturing Engineering, Vol. 4, No. 1, pp. 38-43, 2017 (In Persian).