1. T. Shah:
Department of Economics and Development Studies, University of Swat,Pakistan
2. U. Hayat:
Department of Economics and Development Studies, University of Swat,Pakistan
3. M. Tariq:
Centre for Management and Commerce, University of Swat,Pakistan
4. S. B. Khan:
Department of Animal Health, The University of Agriculture Peshawar,Pakistan
5. L. Wang:
College of Life Science, Linyi University,Shandong,P.R. China