1. Sustainable Development Study Centre, Government College University, Lahore, Pakistan
2. Department of Environmental Sciences, Government College Women University, Sialkot, Pakistan
3. State Key Laboratory of Organic Geochemistry, Chinese Academy of Sciences, Guangzhou Institute of Geochemistry, Guangzhou, China
4. School of Environment, Tsinghua University, Beijing, China
5. College of Earth and Environmental Sciences, University of the Punjab, Lahore, Pakistan
6. NTT Institute of High-Technology, Nhuyen Tat Thanh University, Ho Chi Minh City, Vietnam