Iftikhar Hussain
Department of Industrial Engineering, Engineering College, King Saud University, PO Box 800 Riyadh 11421, Saudi Arabia
Abdul Hadi
Department of Mechanical Engineering, NWFP University of Engineering & Technology, Peshawar, Pakistan
Sahar Noor
Department of Mechanical Engineering, NWFP University of Engineering & Technology, Peshawar, Pakistan
Mohammad Naeem Khan
University Workshops, NWFP, University of Engineering & Technology, Peshawar, Pakistan