1. University of the Punjab Lahore, Pakistan; Govt. College of Science, Pakistan
2. University of the Punjab Lahore, Pakistan; National Research Institute, Poland
3. University of the Punjab Lahore, Pakistan; Govt. Boys College Sokasan, Pakistan
4. University of Lahore, Pakistan
5. University of the Punjab Lahore, Pakistan; University of Management and Technology, Pakistan
6. University of Okar, Pakistan
7. University of the Punjab Lahore, Pakistan