1. I. Hakeem:
Mechanical Engineering Department, NWFP University of Engineering & Technology, Peshawar, Pakistan
2. W. H. Awan:
Mechanical Engineering Department, NWFP University of Engineering & Technology, Peshawar, Pakistan
3. K. M. Niazi:
Mechanical Engineering Department, NWFP University of Engineering & Technology, Peshawar, Pakistan
4. S. Khan:
Mechanical Engineering Department, NWFP University of Engineering & Technology, Peshawar, Pakistan
5. N. A. Khan:
Mechanical Engineering Department, NWFP University of Engineering & Technology, Peshawar, Pakistan