1. Department of Chemistry, Government Dyal Singh College, Lahore, Pakistan
2. Department of Chemistry, University of Sargodha, Sargodha, Pakistan
3. Department of Chemistry, University of Engineering and Technology, Lahore, Pakistan
4. Department of Physics, University of Sargodha, Sargodha, Pakistan
5. Department of Civil Engineering, University College Jubail, Jubail, Saudi Arabia