1. Centre for Analytical Chemistry, School of Chemistry, University of the Punjab, Lahore, Pakistan
2. Centre for Inorganic Chemistry, School of Chemistry, University of the Punjab, Lahore, Pakistan
3. Chemistry Department. School of Science, University of Management and Technology, Lahore, Pakistan
4. Department of Chemistry, College of Science, Taif University, Taif, Saudi Arabia
5. Department of Chemistry, College of Science and Art at Khulis, University of Jeddah, Jeddah, Saudi Arabia
6. Institute of Geology, University of the Punjab, Lahore, Pakistan
7. Department of Chemical Engineering, School of Mining, Metallurgy and Chemical Engineering, University of Johannesburg, Doornfontein, South Africa